./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 59b1cfb91cc72e499bff6d8fc699fc231e5a5cccbbf2aefe05d1bfd2696fc05b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:58:55,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:58:55,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:58:55,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:58:55,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:58:55,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:58:55,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:58:55,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:58:55,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:58:55,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:58:55,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:58:55,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:58:55,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:58:55,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:58:55,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:58:55,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:58:55,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:58:55,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:58:55,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:58:55,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:58:55,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:58:55,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:58:55,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:58:55,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:58:55,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:58:55,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:58:55,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:58:55,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:58:55,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:58:55,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:58:55,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:58:55,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:58:55,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:58:55,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:58:55,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:58:55,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:58:55,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:58:55,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:58:55,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:58:55,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:58:55,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:58:55,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:58:55,942 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:58:55,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:58:55,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:58:55,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:58:55,944 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:58:55,944 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:58:55,944 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:58:55,944 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:58:55,945 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:58:55,945 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:58:55,945 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:58:55,945 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:58:55,945 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:58:55,946 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:58:55,946 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:58:55,946 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:58:55,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:58:55,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:58:55,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:58:55,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:58:55,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:58:55,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:58:55,948 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:58:55,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:58:55,949 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:58:55,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:58:55,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:58:55,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:58:55,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:58:55,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:58:55,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:58:55,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:58:55,951 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:58:55,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:58:55,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:58:55,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:58:55,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:58:55,952 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_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59b1cfb91cc72e499bff6d8fc699fc231e5a5cccbbf2aefe05d1bfd2696fc05b [2021-11-19 13:58:56,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:58:56,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:58:56,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:58:56,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:58:56,233 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:58:56,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-19 13:58:56,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data/2cdecfd58/cd7a62c04abb40109b76fd756a14be8c/FLAG3f99db5ee [2021-11-19 13:58:57,146 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:58:57,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-19 13:58:57,221 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data/2cdecfd58/cd7a62c04abb40109b76fd756a14be8c/FLAG3f99db5ee [2021-11-19 13:58:57,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data/2cdecfd58/cd7a62c04abb40109b76fd756a14be8c [2021-11-19 13:58:57,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:58:57,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:58:57,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:58:57,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:58:57,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:58:57,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:58:57" (1/1) ... [2021-11-19 13:58:57,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5e249b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:57, skipping insertion in model container [2021-11-19 13:58:57,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:58:57" (1/1) ... [2021-11-19 13:58:57,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:58:57,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:00,104 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,170 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,181 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,197 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,230 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,253 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,264 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,294 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,310 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,347 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,359 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,370 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,379 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,388 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,397 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,407 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,416 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,418 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,428 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,510 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,511 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,512 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,527 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,543 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,551 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,567 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,574 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,590 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,595 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,598 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,608 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,612 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,624 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,643 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,664 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,682 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,755 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,755 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,756 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,781 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,790 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,814 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,822 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,837 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,837 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:00,838 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,150 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,151 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,151 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,152 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,152 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,157 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,157 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,205 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,205 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,206 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,210 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,510 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:01,521 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:02,101 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:02,101 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:02,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434581,434594] [2021-11-19 13:59:02,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434726,434739] [2021-11-19 13:59:02,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434872,434885] [2021-11-19 13:59:02,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435037,435050] [2021-11-19 13:59:02,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435195,435208] [2021-11-19 13:59:02,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435353,435366] [2021-11-19 13:59:02,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435511,435524] [2021-11-19 13:59:02,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435671,435684] [2021-11-19 13:59:02,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435830,435843] [2021-11-19 13:59:02,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435969,435982] [2021-11-19 13:59:02,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436111,436124] [2021-11-19 13:59:02,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436260,436273] [2021-11-19 13:59:02,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436399,436412] [2021-11-19 13:59:02,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436554,436567] [2021-11-19 13:59:02,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436714,436727] [2021-11-19 13:59:02,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436865,436878] [2021-11-19 13:59:02,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437016,437029] [2021-11-19 13:59:02,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437168,437181] [2021-11-19 13:59:02,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437317,437330] [2021-11-19 13:59:02,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437465,437478] [2021-11-19 13:59:02,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437622,437635] [2021-11-19 13:59:02,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437771,437784] [2021-11-19 13:59:02,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437927,437940] [2021-11-19 13:59:02,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438080,438093] [2021-11-19 13:59:02,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438226,438239] [2021-11-19 13:59:02,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438369,438382] [2021-11-19 13:59:02,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438521,438534] [2021-11-19 13:59:02,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438667,438680] [2021-11-19 13:59:02,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438812,438825] [2021-11-19 13:59:02,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438966,438979] [2021-11-19 13:59:02,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439117,439130] [2021-11-19 13:59:02,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439272,439285] [2021-11-19 13:59:02,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439424,439437] [2021-11-19 13:59:02,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439579,439592] [2021-11-19 13:59:02,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439743,439756] [2021-11-19 13:59:02,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439899,439912] [2021-11-19 13:59:02,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440063,440076] [2021-11-19 13:59:02,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440205,440218] [2021-11-19 13:59:02,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440363,440376] [2021-11-19 13:59:02,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440530,440543] [2021-11-19 13:59:02,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440689,440702] [2021-11-19 13:59:02,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440848,440861] [2021-11-19 13:59:02,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440997,441010] [2021-11-19 13:59:02,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441144,441157] [2021-11-19 13:59:02,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441283,441296] [2021-11-19 13:59:02,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441446,441459] [2021-11-19 13:59:02,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441612,441625] [2021-11-19 13:59:02,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441776,441789] [2021-11-19 13:59:02,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441941,441954] [2021-11-19 13:59:02,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442106,442119] [2021-11-19 13:59:02,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442272,442285] [2021-11-19 13:59:02,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442437,442450] [2021-11-19 13:59:02,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442604,442617] [2021-11-19 13:59:02,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442764,442777] [2021-11-19 13:59:02,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442926,442939] [2021-11-19 13:59:02,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443085,443098] [2021-11-19 13:59:02,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443231,443244] [2021-11-19 13:59:02,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443374,443387] [2021-11-19 13:59:02,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443518,443531] [2021-11-19 13:59:02,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443661,443674] [2021-11-19 13:59:02,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443805,443818] [2021-11-19 13:59:02,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443946,443959] [2021-11-19 13:59:02,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444084,444097] [2021-11-19 13:59:02,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444242,444255] [2021-11-19 13:59:02,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444401,444414] [2021-11-19 13:59:02,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444557,444570] [2021-11-19 13:59:02,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444706,444719] [2021-11-19 13:59:02,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444858,444871] [2021-11-19 13:59:02,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445009,445022] [2021-11-19 13:59:02,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445158,445171] [2021-11-19 13:59:02,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445310,445323] [2021-11-19 13:59:02,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445458,445471] [2021-11-19 13:59:02,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445611,445624] [2021-11-19 13:59:02,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445762,445775] [2021-11-19 13:59:02,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445912,445925] [2021-11-19 13:59:02,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446059,446072] [2021-11-19 13:59:02,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446210,446223] [2021-11-19 13:59:02,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446361,446374] [2021-11-19 13:59:02,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446509,446522] [2021-11-19 13:59:02,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446675,446688] [2021-11-19 13:59:02,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446844,446857] [2021-11-19 13:59:02,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447011,447024] [2021-11-19 13:59:02,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447179,447192] [2021-11-19 13:59:02,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447329,447342] [2021-11-19 13:59:02,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447476,447489] [2021-11-19 13:59:02,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447637,447650] [2021-11-19 13:59:02,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447807,447820] [2021-11-19 13:59:02,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447969,447982] [2021-11-19 13:59:02,826 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:02,850 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) [2021-11-19 13:59:02,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@353d6dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:02, skipping insertion in model container [2021-11-19 13:59:02,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:02,851 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:59:02,853 INFO L158 Benchmark]: Toolchain (without parser) took 5233.19ms. Allocated memory was 115.3MB in the beginning and 161.5MB in the end (delta: 46.1MB). Free memory was 80.2MB in the beginning and 65.3MB in the end (delta: 14.9MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2021-11-19 13:59:02,854 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory was 92.0MB in the beginning and 92.0MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:59:02,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5230.78ms. Allocated memory was 115.3MB in the beginning and 161.5MB in the end (delta: 46.1MB). Free memory was 79.9MB in the beginning and 65.3MB in the end (delta: 14.6MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2021-11-19 13:59:02,856 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 115.3MB. Free memory was 92.0MB in the beginning and 92.0MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5230.78ms. Allocated memory was 115.3MB in the beginning and 161.5MB in the end (delta: 46.1MB). Free memory was 79.9MB in the beginning and 65.3MB in the end (delta: 14.6MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4886]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 59b1cfb91cc72e499bff6d8fc699fc231e5a5cccbbf2aefe05d1bfd2696fc05b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:59:05,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:59:05,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:59:05,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:59:05,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:59:05,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:59:05,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:59:05,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:59:05,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:59:05,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:59:05,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:59:05,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:59:05,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:59:05,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:59:05,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:59:05,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:59:05,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:59:05,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:59:05,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:59:05,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:59:05,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:59:05,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:59:05,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:59:05,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:59:05,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:59:05,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:59:05,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:59:05,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:59:05,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:59:05,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:59:05,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:59:05,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:59:05,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:59:05,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:59:05,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:59:05,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:59:05,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:59:05,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:59:05,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:59:05,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:59:05,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:59:05,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:59:05,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:59:05,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:59:05,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:59:05,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:59:05,358 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:59:05,358 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:59:05,358 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:59:05,358 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:59:05,359 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:59:05,359 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:59:05,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:59:05,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:59:05,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:59:05,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:59:05,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:59:05,363 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:59:05,363 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:59:05,363 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:59:05,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:59:05,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:59:05,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:59:05,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:59:05,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:59:05,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:59:05,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:05,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:59:05,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:59:05,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:59:05,366 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:59:05,366 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:59:05,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:59:05,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:59:05,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:59:05,367 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_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59b1cfb91cc72e499bff6d8fc699fc231e5a5cccbbf2aefe05d1bfd2696fc05b [2021-11-19 13:59:05,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:59:05,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:59:05,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:59:05,741 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:59:05,741 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:59:05,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-19 13:59:05,824 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data/1e00152cf/5f4a52407ec94558b34d0a589a357b07/FLAGf00bf35b1 [2021-11-19 13:59:06,963 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:59:06,964 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-19 13:59:07,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data/1e00152cf/5f4a52407ec94558b34d0a589a357b07/FLAGf00bf35b1 [2021-11-19 13:59:07,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/data/1e00152cf/5f4a52407ec94558b34d0a589a357b07 [2021-11-19 13:59:07,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:59:07,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:59:07,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:07,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:59:07,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:59:07,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:07" (1/1) ... [2021-11-19 13:59:07,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dfe3829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:07, skipping insertion in model container [2021-11-19 13:59:07,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:07" (1/1) ... [2021-11-19 13:59:07,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:59:07,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:12,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434581,434594] [2021-11-19 13:59:12,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434726,434739] [2021-11-19 13:59:12,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434872,434885] [2021-11-19 13:59:12,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435037,435050] [2021-11-19 13:59:12,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435195,435208] [2021-11-19 13:59:12,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435353,435366] [2021-11-19 13:59:12,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435511,435524] [2021-11-19 13:59:12,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435671,435684] [2021-11-19 13:59:12,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435830,435843] [2021-11-19 13:59:12,276 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435969,435982] [2021-11-19 13:59:12,276 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436111,436124] [2021-11-19 13:59:12,277 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436260,436273] [2021-11-19 13:59:12,277 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436399,436412] [2021-11-19 13:59:12,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436554,436567] [2021-11-19 13:59:12,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436714,436727] [2021-11-19 13:59:12,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436865,436878] [2021-11-19 13:59:12,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437016,437029] [2021-11-19 13:59:12,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437168,437181] [2021-11-19 13:59:12,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437317,437330] [2021-11-19 13:59:12,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437465,437478] [2021-11-19 13:59:12,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437622,437635] [2021-11-19 13:59:12,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437771,437784] [2021-11-19 13:59:12,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437927,437940] [2021-11-19 13:59:12,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438080,438093] [2021-11-19 13:59:12,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438226,438239] [2021-11-19 13:59:12,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438369,438382] [2021-11-19 13:59:12,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438521,438534] [2021-11-19 13:59:12,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438667,438680] [2021-11-19 13:59:12,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438812,438825] [2021-11-19 13:59:12,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438966,438979] [2021-11-19 13:59:12,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439117,439130] [2021-11-19 13:59:12,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439272,439285] [2021-11-19 13:59:12,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439424,439437] [2021-11-19 13:59:12,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439579,439592] [2021-11-19 13:59:12,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439743,439756] [2021-11-19 13:59:12,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439899,439912] [2021-11-19 13:59:12,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440063,440076] [2021-11-19 13:59:12,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440205,440218] [2021-11-19 13:59:12,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440363,440376] [2021-11-19 13:59:12,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440530,440543] [2021-11-19 13:59:12,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440689,440702] [2021-11-19 13:59:12,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440848,440861] [2021-11-19 13:59:12,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440997,441010] [2021-11-19 13:59:12,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441144,441157] [2021-11-19 13:59:12,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441283,441296] [2021-11-19 13:59:12,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441446,441459] [2021-11-19 13:59:12,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441612,441625] [2021-11-19 13:59:12,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441776,441789] [2021-11-19 13:59:12,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441941,441954] [2021-11-19 13:59:12,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442106,442119] [2021-11-19 13:59:12,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442272,442285] [2021-11-19 13:59:12,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442437,442450] [2021-11-19 13:59:12,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442604,442617] [2021-11-19 13:59:12,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442764,442777] [2021-11-19 13:59:12,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442926,442939] [2021-11-19 13:59:12,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443085,443098] [2021-11-19 13:59:12,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443231,443244] [2021-11-19 13:59:12,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443374,443387] [2021-11-19 13:59:12,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443518,443531] [2021-11-19 13:59:12,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443661,443674] [2021-11-19 13:59:12,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443805,443818] [2021-11-19 13:59:12,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443946,443959] [2021-11-19 13:59:12,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444084,444097] [2021-11-19 13:59:12,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444242,444255] [2021-11-19 13:59:12,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444401,444414] [2021-11-19 13:59:12,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444557,444570] [2021-11-19 13:59:12,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444706,444719] [2021-11-19 13:59:12,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444858,444871] [2021-11-19 13:59:12,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445009,445022] [2021-11-19 13:59:12,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445158,445171] [2021-11-19 13:59:12,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445310,445323] [2021-11-19 13:59:12,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445458,445471] [2021-11-19 13:59:12,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445611,445624] [2021-11-19 13:59:12,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445762,445775] [2021-11-19 13:59:12,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445912,445925] [2021-11-19 13:59:12,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446059,446072] [2021-11-19 13:59:12,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446210,446223] [2021-11-19 13:59:12,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446361,446374] [2021-11-19 13:59:12,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446509,446522] [2021-11-19 13:59:12,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446675,446688] [2021-11-19 13:59:12,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446844,446857] [2021-11-19 13:59:12,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447011,447024] [2021-11-19 13:59:12,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447179,447192] [2021-11-19 13:59:12,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447329,447342] [2021-11-19 13:59:12,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447476,447489] [2021-11-19 13:59:12,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447637,447650] [2021-11-19 13:59:12,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447807,447820] [2021-11-19 13:59:12,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447969,447982] [2021-11-19 13:59:12,382 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:12,429 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:59:12,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:12,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434581,434594] [2021-11-19 13:59:12,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434726,434739] [2021-11-19 13:59:12,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434872,434885] [2021-11-19 13:59:12,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435037,435050] [2021-11-19 13:59:12,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435195,435208] [2021-11-19 13:59:12,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435353,435366] [2021-11-19 13:59:12,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435511,435524] [2021-11-19 13:59:12,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435671,435684] [2021-11-19 13:59:12,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435830,435843] [2021-11-19 13:59:12,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435969,435982] [2021-11-19 13:59:12,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436111,436124] [2021-11-19 13:59:12,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436260,436273] [2021-11-19 13:59:12,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436399,436412] [2021-11-19 13:59:12,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436554,436567] [2021-11-19 13:59:12,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436714,436727] [2021-11-19 13:59:12,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436865,436878] [2021-11-19 13:59:12,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437016,437029] [2021-11-19 13:59:12,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437168,437181] [2021-11-19 13:59:12,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437317,437330] [2021-11-19 13:59:12,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437465,437478] [2021-11-19 13:59:12,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437622,437635] [2021-11-19 13:59:12,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437771,437784] [2021-11-19 13:59:12,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437927,437940] [2021-11-19 13:59:12,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438080,438093] [2021-11-19 13:59:12,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438226,438239] [2021-11-19 13:59:12,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438369,438382] [2021-11-19 13:59:12,943 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438521,438534] [2021-11-19 13:59:12,943 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438667,438680] [2021-11-19 13:59:12,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438812,438825] [2021-11-19 13:59:12,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438966,438979] [2021-11-19 13:59:12,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439117,439130] [2021-11-19 13:59:12,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439272,439285] [2021-11-19 13:59:12,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439424,439437] [2021-11-19 13:59:12,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439579,439592] [2021-11-19 13:59:12,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439743,439756] [2021-11-19 13:59:12,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439899,439912] [2021-11-19 13:59:12,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440063,440076] [2021-11-19 13:59:12,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440205,440218] [2021-11-19 13:59:12,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440363,440376] [2021-11-19 13:59:12,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440530,440543] [2021-11-19 13:59:12,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440689,440702] [2021-11-19 13:59:12,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440848,440861] [2021-11-19 13:59:12,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440997,441010] [2021-11-19 13:59:12,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441144,441157] [2021-11-19 13:59:12,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441283,441296] [2021-11-19 13:59:12,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441446,441459] [2021-11-19 13:59:12,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441612,441625] [2021-11-19 13:59:12,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441776,441789] [2021-11-19 13:59:12,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441941,441954] [2021-11-19 13:59:12,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442106,442119] [2021-11-19 13:59:12,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442272,442285] [2021-11-19 13:59:12,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442437,442450] [2021-11-19 13:59:12,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442604,442617] [2021-11-19 13:59:12,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442764,442777] [2021-11-19 13:59:12,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442926,442939] [2021-11-19 13:59:12,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443085,443098] [2021-11-19 13:59:12,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443231,443244] [2021-11-19 13:59:12,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443374,443387] [2021-11-19 13:59:12,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443518,443531] [2021-11-19 13:59:12,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443661,443674] [2021-11-19 13:59:12,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443805,443818] [2021-11-19 13:59:12,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443946,443959] [2021-11-19 13:59:12,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444084,444097] [2021-11-19 13:59:12,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444242,444255] [2021-11-19 13:59:12,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444401,444414] [2021-11-19 13:59:12,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444557,444570] [2021-11-19 13:59:12,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444706,444719] [2021-11-19 13:59:12,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444858,444871] [2021-11-19 13:59:12,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445009,445022] [2021-11-19 13:59:12,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445158,445171] [2021-11-19 13:59:12,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445310,445323] [2021-11-19 13:59:12,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445458,445471] [2021-11-19 13:59:12,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445611,445624] [2021-11-19 13:59:12,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445762,445775] [2021-11-19 13:59:12,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445912,445925] [2021-11-19 13:59:12,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446059,446072] [2021-11-19 13:59:12,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446210,446223] [2021-11-19 13:59:12,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446361,446374] [2021-11-19 13:59:12,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446509,446522] [2021-11-19 13:59:12,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446675,446688] [2021-11-19 13:59:12,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446844,446857] [2021-11-19 13:59:12,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447011,447024] [2021-11-19 13:59:12,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447179,447192] [2021-11-19 13:59:12,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447329,447342] [2021-11-19 13:59:12,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447476,447489] [2021-11-19 13:59:12,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447637,447650] [2021-11-19 13:59:12,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447807,447820] [2021-11-19 13:59:12,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447969,447982] [2021-11-19 13:59:13,004 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:13,029 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:59:13,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434581,434594] [2021-11-19 13:59:13,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434726,434739] [2021-11-19 13:59:13,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[434872,434885] [2021-11-19 13:59:13,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435037,435050] [2021-11-19 13:59:13,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435195,435208] [2021-11-19 13:59:13,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435353,435366] [2021-11-19 13:59:13,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435511,435524] [2021-11-19 13:59:13,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435671,435684] [2021-11-19 13:59:13,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435830,435843] [2021-11-19 13:59:13,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[435969,435982] [2021-11-19 13:59:13,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436111,436124] [2021-11-19 13:59:13,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436260,436273] [2021-11-19 13:59:13,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436399,436412] [2021-11-19 13:59:13,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436554,436567] [2021-11-19 13:59:13,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436714,436727] [2021-11-19 13:59:13,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[436865,436878] [2021-11-19 13:59:13,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437016,437029] [2021-11-19 13:59:13,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437168,437181] [2021-11-19 13:59:13,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437317,437330] [2021-11-19 13:59:13,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437465,437478] [2021-11-19 13:59:13,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437622,437635] [2021-11-19 13:59:13,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437771,437784] [2021-11-19 13:59:13,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[437927,437940] [2021-11-19 13:59:13,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438080,438093] [2021-11-19 13:59:13,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438226,438239] [2021-11-19 13:59:13,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438369,438382] [2021-11-19 13:59:13,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438521,438534] [2021-11-19 13:59:13,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438667,438680] [2021-11-19 13:59:13,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438812,438825] [2021-11-19 13:59:13,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[438966,438979] [2021-11-19 13:59:13,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439117,439130] [2021-11-19 13:59:13,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439272,439285] [2021-11-19 13:59:13,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439424,439437] [2021-11-19 13:59:13,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439579,439592] [2021-11-19 13:59:13,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439743,439756] [2021-11-19 13:59:13,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[439899,439912] [2021-11-19 13:59:13,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440063,440076] [2021-11-19 13:59:13,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440205,440218] [2021-11-19 13:59:13,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440363,440376] [2021-11-19 13:59:13,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440530,440543] [2021-11-19 13:59:13,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440689,440702] [2021-11-19 13:59:13,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440848,440861] [2021-11-19 13:59:13,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[440997,441010] [2021-11-19 13:59:13,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441144,441157] [2021-11-19 13:59:13,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441283,441296] [2021-11-19 13:59:13,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441446,441459] [2021-11-19 13:59:13,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441612,441625] [2021-11-19 13:59:13,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441776,441789] [2021-11-19 13:59:13,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[441941,441954] [2021-11-19 13:59:13,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442106,442119] [2021-11-19 13:59:13,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442272,442285] [2021-11-19 13:59:13,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442437,442450] [2021-11-19 13:59:13,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442604,442617] [2021-11-19 13:59:13,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442764,442777] [2021-11-19 13:59:13,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[442926,442939] [2021-11-19 13:59:13,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443085,443098] [2021-11-19 13:59:13,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443231,443244] [2021-11-19 13:59:13,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443374,443387] [2021-11-19 13:59:13,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443518,443531] [2021-11-19 13:59:13,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443661,443674] [2021-11-19 13:59:13,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443805,443818] [2021-11-19 13:59:13,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[443946,443959] [2021-11-19 13:59:13,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444084,444097] [2021-11-19 13:59:13,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444242,444255] [2021-11-19 13:59:13,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444401,444414] [2021-11-19 13:59:13,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444557,444570] [2021-11-19 13:59:13,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444706,444719] [2021-11-19 13:59:13,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[444858,444871] [2021-11-19 13:59:13,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445009,445022] [2021-11-19 13:59:13,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445158,445171] [2021-11-19 13:59:13,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445310,445323] [2021-11-19 13:59:13,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445458,445471] [2021-11-19 13:59:13,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445611,445624] [2021-11-19 13:59:13,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445762,445775] [2021-11-19 13:59:13,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[445912,445925] [2021-11-19 13:59:13,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446059,446072] [2021-11-19 13:59:13,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446210,446223] [2021-11-19 13:59:13,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446361,446374] [2021-11-19 13:59:13,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446509,446522] [2021-11-19 13:59:13,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446675,446688] [2021-11-19 13:59:13,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[446844,446857] [2021-11-19 13:59:13,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447011,447024] [2021-11-19 13:59:13,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447179,447192] [2021-11-19 13:59:13,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447329,447342] [2021-11-19 13:59:13,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447476,447489] [2021-11-19 13:59:13,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447637,447650] [2021-11-19 13:59:13,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447807,447820] [2021-11-19 13:59:13,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i[447969,447982] [2021-11-19 13:59:13,701 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:14,100 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:59:14,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14 WrapperNode [2021-11-19 13:59:14,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:14,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:14,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:59:14,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:59:14,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,530 INFO L137 Inliner]: procedures = 757, calls = 3425, calls flagged for inlining = 401, calls inlined = 237, statements flattened = 6631 [2021-11-19 13:59:14,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:14,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:59:14,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:59:14,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:59:14,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:59:14,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:59:14,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:59:14,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:59:14,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (1/1) ... [2021-11-19 13:59:14,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:14,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:59:14,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:59:14,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:59:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:59:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:59:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:59:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:59:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:59:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:59:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-19 13:59:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-19 13:59:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure u132_disable [2021-11-19 13:59:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_disable [2021-11-19 13:59:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:59:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:59:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure u132_remove [2021-11-19 13:59:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_remove [2021-11-19 13:59:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure u132_udev_init_kref [2021-11-19 13:59:14,969 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_udev_init_kref [2021-11-19 13:59:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:59:14,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:59:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:59:14,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:59:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 13:59:14,970 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 13:59:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure u132_udev_put_kref [2021-11-19 13:59:14,970 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_udev_put_kref [2021-11-19 13:59:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ftdi_elan_read_pcimem [2021-11-19 13:59:14,970 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ftdi_elan_read_pcimem [2021-11-19 13:59:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure u132_ring_requeue_work [2021-11-19 13:59:14,971 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_ring_requeue_work [2021-11-19 13:59:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure u132_bus_suspend [2021-11-19 13:59:14,971 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_bus_suspend [2021-11-19 13:59:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure u132_get_frame [2021-11-19 13:59:14,971 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_get_frame [2021-11-19 13:59:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:59:14,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:59:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:59:14,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:59:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure edset_output [2021-11-19 13:59:14,972 INFO L138 BoogieDeclarations]: Found implementation of procedure edset_output [2021-11-19 13:59:14,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:59:14,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:59:14,973 INFO L130 BoogieDeclarations]: Found specification of procedure read_roothub_info [2021-11-19 13:59:14,973 INFO L138 BoogieDeclarations]: Found implementation of procedure read_roothub_info [2021-11-19 13:59:14,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_scheduler_lock_of_u132 [2021-11-19 13:59:14,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_scheduler_lock_of_u132 [2021-11-19 13:59:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure edset_single [2021-11-19 13:59:14,974 INFO L138 BoogieDeclarations]: Found implementation of procedure edset_single [2021-11-19 13:59:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:59:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:59:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:59:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:59:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure edset_setup [2021-11-19 13:59:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure edset_setup [2021-11-19 13:59:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 13:59:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 13:59:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 13:59:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 13:59:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:59:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:59:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure u132_resume [2021-11-19 13:59:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_resume [2021-11-19 13:59:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2021-11-19 13:59:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2021-11-19 13:59:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 13:59:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 13:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 13:59:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 13:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:59:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_cancel_work [2021-11-19 13:59:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_cancel_work [2021-11-19 13:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-19 13:59:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-19 13:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:59:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-11-19 13:59:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-11-19 13:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_ring_work_scheduler [2021-11-19 13:59:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_ring_work_scheduler [2021-11-19 13:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:59:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 13:59:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 13:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:59:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 13:59:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 13:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure u132_u132_put_kref [2021-11-19 13:59:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_u132_put_kref [2021-11-19 13:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-19 13:59:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-19 13:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:59:14,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_endp_work_scheduler [2021-11-19 13:59:14,981 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_endp_work_scheduler [2021-11-19 13:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-19 13:59:14,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-19 13:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:59:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_monitor_work [2021-11-19 13:59:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_monitor_work [2021-11-19 13:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure u132_monitor_requeue_work [2021-11-19 13:59:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_monitor_requeue_work [2021-11-19 13:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_stop [2021-11-19 13:59:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_stop [2021-11-19 13:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:59:14,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:59:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:59:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_giveback_urb [2021-11-19 13:59:14,987 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_giveback_urb [2021-11-19 13:59:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:59:14,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:59:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ftdi_elan_write_pcimem [2021-11-19 13:59:14,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ftdi_elan_write_pcimem [2021-11-19 13:59:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_queue_work [2021-11-19 13:59:14,989 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_queue_work [2021-11-19 13:59:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_u132_module_lock [2021-11-19 13:59:14,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_u132_module_lock [2021-11-19 13:59:14,990 INFO L130 BoogieDeclarations]: Found specification of procedure u132_ring_queue_work [2021-11-19 13:59:14,990 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_ring_queue_work [2021-11-19 13:59:14,990 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-11-19 13:59:14,990 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-11-19 13:59:14,991 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 13:59:14,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 13:59:14,991 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:59:14,991 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:59:14,991 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_start [2021-11-19 13:59:14,991 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_start [2021-11-19 13:59:14,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:59:14,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:59:14,992 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ftdi_elan_edset_input [2021-11-19 13:59:14,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ftdi_elan_edset_input [2021-11-19 13:59:14,992 INFO L130 BoogieDeclarations]: Found specification of procedure u132_to_hcd [2021-11-19 13:59:14,992 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_to_hcd [2021-11-19 13:59:14,992 INFO L130 BoogieDeclarations]: Found specification of procedure u132_probe [2021-11-19 13:59:14,992 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_probe [2021-11-19 13:59:14,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_sw_lock_of_u132 [2021-11-19 13:59:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_sw_lock_of_u132 [2021-11-19 13:59:14,993 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-19 13:59:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-19 13:59:14,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:59:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:59:14,994 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_init_kref [2021-11-19 13:59:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_init_kref [2021-11-19 13:59:14,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_sw_lock_of_u132 [2021-11-19 13:59:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_sw_lock_of_u132 [2021-11-19 13:59:14,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:59:14,994 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 13:59:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 13:59:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-19 13:59:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-19 13:59:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:59:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:59:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:59:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:59:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:59:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure u132_udev_get_kref [2021-11-19 13:59:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_udev_get_kref [2021-11-19 13:59:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:59:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:59:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_u132 [2021-11-19 13:59:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_u132 [2021-11-19 13:59:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:59:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:59:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2021-11-19 13:59:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2021-11-19 13:59:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure u132_bus_resume [2021-11-19 13:59:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_bus_resume [2021-11-19 13:59:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_slock_of_u132_spin [2021-11-19 13:59:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_slock_of_u132_spin [2021-11-19 13:59:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:59:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:59:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_delete [2021-11-19 13:59:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_delete [2021-11-19 13:59:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:59:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2021-11-19 13:59:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2021-11-19 13:59:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:59:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:59:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:59:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:59:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_put_kref [2021-11-19 13:59:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_put_kref [2021-11-19 13:59:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:59:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_100 [2021-11-19 13:59:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_100 [2021-11-19 13:59:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:59:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:59:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:59:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:59:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:59:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure u132_ring_put_kref [2021-11-19 13:59:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_ring_put_kref [2021-11-19 13:59:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-19 13:59:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-19 13:59:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure u132_endp_urb_dequeue [2021-11-19 13:59:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_endp_urb_dequeue [2021-11-19 13:59:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:59:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:59:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:59:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:59:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 13:59:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 13:59:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure u132_hcd_reset [2021-11-19 13:59:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_hcd_reset [2021-11-19 13:59:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 13:59:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 13:59:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:59:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:59:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 13:59:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 13:59:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:59:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:59:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure port_power [2021-11-19 13:59:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure port_power [2021-11-19 13:59:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:59:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:59:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:59:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:59:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:59:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:59:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:59:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:59:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 13:59:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 13:59:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:59:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:59:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_link_urb_to_ep [2021-11-19 13:59:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_link_urb_to_ep [2021-11-19 13:59:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:59:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:59:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:59:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:59:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-11-19 13:59:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-11-19 13:59:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_scheduler_lock_of_u132 [2021-11-19 13:59:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_scheduler_lock_of_u132 [2021-11-19 13:59:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure u132_ring_cancel_work [2021-11-19 13:59:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure u132_ring_cancel_work [2021-11-19 13:59:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:59:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:59:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:59:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:59:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-19 13:59:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-19 13:59:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-19 13:59:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-19 13:59:15,010 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-19 13:59:15,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_u132_module_lock [2021-11-19 13:59:15,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_u132_module_lock [2021-11-19 13:59:15,949 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:59:15,955 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:59:16,249 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:00:01,648 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:00:01,672 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:00:01,673 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:00:01,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:01 BoogieIcfgContainer [2021-11-19 14:00:01,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:00:01,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:00:01,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:00:01,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:00:01,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:59:07" (1/3) ... [2021-11-19 14:00:01,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6bd7a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:01, skipping insertion in model container [2021-11-19 14:00:01,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:14" (2/3) ... [2021-11-19 14:00:01,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6bd7a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:01, skipping insertion in model container [2021-11-19 14:00:01,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:01" (3/3) ... [2021-11-19 14:00:01,688 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--host--u132-hcd.ko.cil.i [2021-11-19 14:00:01,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:00:01,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-19 14:00:01,762 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:00:01,769 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 [2021-11-19 14:00:01,769 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-19 14:00:01,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 2139 states, 1430 states have (on average 1.3258741258741258) internal successors, (1896), 1522 states have internal predecessors, (1896), 565 states have call successors, (565), 115 states have call predecessors, (565), 114 states have return successors, (559), 527 states have call predecessors, (559), 559 states have call successors, (559) [2021-11-19 14:00:01,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-19 14:00:01,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:01,845 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:01,846 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:01,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:01,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1788017132, now seen corresponding path program 1 times [2021-11-19 14:00:01,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:01,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911707633] [2021-11-19 14:00:01,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:01,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:01,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:01,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:01,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:00:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:02,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:02,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:03,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:03,703 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:03,703 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:03,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911707633] [2021-11-19 14:00:03,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911707633] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:03,704 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:03,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:03,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490842787] [2021-11-19 14:00:03,707 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:03,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:03,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:03,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:03,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:03,750 INFO L87 Difference]: Start difference. First operand has 2139 states, 1430 states have (on average 1.3258741258741258) internal successors, (1896), 1522 states have internal predecessors, (1896), 565 states have call successors, (565), 115 states have call predecessors, (565), 114 states have return successors, (559), 527 states have call predecessors, (559), 559 states have call successors, (559) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:00:04,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:04,197 INFO L93 Difference]: Finished difference Result 4241 states and 6214 transitions. [2021-11-19 14:00:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:04,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 61 [2021-11-19 14:00:04,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:04,241 INFO L225 Difference]: With dead ends: 4241 [2021-11-19 14:00:04,241 INFO L226 Difference]: Without dead ends: 2119 [2021-11-19 14:00:04,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:04,268 INFO L933 BasicCegarLoop]: 2982 mSDtfsCounter, 2936 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 5962 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:04,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2938 Valid, 5962 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:04,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2021-11-19 14:00:04,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2119. [2021-11-19 14:00:04,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2119 states, 1419 states have (on average 1.302325581395349) internal successors, (1848), 1506 states have internal predecessors, (1848), 559 states have call successors, (559), 114 states have call predecessors, (559), 113 states have return successors, (557), 525 states have call predecessors, (557), 557 states have call successors, (557) [2021-11-19 14:00:04,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 2964 transitions. [2021-11-19 14:00:04,519 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 2964 transitions. Word has length 61 [2021-11-19 14:00:04,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:04,521 INFO L470 AbstractCegarLoop]: Abstraction has 2119 states and 2964 transitions. [2021-11-19 14:00:04,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:00:04,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 2964 transitions. [2021-11-19 14:00:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-19 14:00:04,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:04,534 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:04,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:04,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:04,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:04,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:04,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1487276142, now seen corresponding path program 1 times [2021-11-19 14:00:04,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:04,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463801061] [2021-11-19 14:00:04,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:04,758 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:04,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:04,761 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:04,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:00:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:05,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:05,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:06,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:06,542 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:06,542 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:06,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463801061] [2021-11-19 14:00:06,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463801061] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:06,543 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:06,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:06,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989817213] [2021-11-19 14:00:06,543 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:06,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:06,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:06,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:06,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:06,546 INFO L87 Difference]: Start difference. First operand 2119 states and 2964 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:00:06,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:06,758 INFO L93 Difference]: Finished difference Result 2119 states and 2964 transitions. [2021-11-19 14:00:06,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:06,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 67 [2021-11-19 14:00:06,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:06,781 INFO L225 Difference]: With dead ends: 2119 [2021-11-19 14:00:06,781 INFO L226 Difference]: Without dead ends: 2117 [2021-11-19 14:00:06,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:06,786 INFO L933 BasicCegarLoop]: 2960 mSDtfsCounter, 2905 mSDsluCounter, 5916 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 8876 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:06,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2907 Valid, 8876 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2021-11-19 14:00:06,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2117. [2021-11-19 14:00:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1418 states have (on average 1.301833568406206) internal successors, (1846), 1504 states have internal predecessors, (1846), 559 states have call successors, (559), 114 states have call predecessors, (559), 113 states have return successors, (557), 525 states have call predecessors, (557), 557 states have call successors, (557) [2021-11-19 14:00:06,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2962 transitions. [2021-11-19 14:00:06,965 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2962 transitions. Word has length 67 [2021-11-19 14:00:06,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:06,966 INFO L470 AbstractCegarLoop]: Abstraction has 2117 states and 2962 transitions. [2021-11-19 14:00:06,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:00:06,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2962 transitions. [2021-11-19 14:00:06,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-19 14:00:06,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:06,970 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:06,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:07,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:07,194 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:07,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:07,194 INFO L85 PathProgramCache]: Analyzing trace with hash -2020854893, now seen corresponding path program 1 times [2021-11-19 14:00:07,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:07,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572178133] [2021-11-19 14:00:07,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:07,197 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:07,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:07,198 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:07,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:00:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:08,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 14:00:08,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:08,976 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 14:00:08,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 14:00:10,407 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:10,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572178133] [2021-11-19 14:00:10,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572178133] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:10,407 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:10,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 25 [2021-11-19 14:00:10,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823300801] [2021-11-19 14:00:10,408 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:10,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 14:00:10,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:10,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 14:00:10,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:00:10,410 INFO L87 Difference]: Start difference. First operand 2117 states and 2962 transitions. Second operand has 25 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 10 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2021-11-19 14:00:13,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:13,201 INFO L93 Difference]: Finished difference Result 3824 states and 5338 transitions. [2021-11-19 14:00:13,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 14:00:13,202 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 10 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 69 [2021-11-19 14:00:13,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:13,223 INFO L225 Difference]: With dead ends: 3824 [2021-11-19 14:00:13,223 INFO L226 Difference]: Without dead ends: 2153 [2021-11-19 14:00:13,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 14:00:13,234 INFO L933 BasicCegarLoop]: 2957 mSDtfsCounter, 69 mSDsluCounter, 47068 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 50025 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:13,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 50025 Invalid, 796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [269 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 14:00:13,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2021-11-19 14:00:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2129. [2021-11-19 14:00:13,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 1426 states have (on average 1.3001402524544179) internal successors, (1854), 1512 states have internal predecessors, (1854), 563 states have call successors, (563), 114 states have call predecessors, (563), 113 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-19 14:00:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 2978 transitions. [2021-11-19 14:00:13,390 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 2978 transitions. Word has length 69 [2021-11-19 14:00:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:13,390 INFO L470 AbstractCegarLoop]: Abstraction has 2129 states and 2978 transitions. [2021-11-19 14:00:13,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 10 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2021-11-19 14:00:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 2978 transitions. [2021-11-19 14:00:13,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 14:00:13,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:13,394 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:13,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:13,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:13,609 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:13,610 INFO L85 PathProgramCache]: Analyzing trace with hash 30076442, now seen corresponding path program 1 times [2021-11-19 14:00:13,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:13,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347049320] [2021-11-19 14:00:13,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:13,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:13,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:13,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:13,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:00:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:14,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:14,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:14,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:15,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:15,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:15,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347049320] [2021-11-19 14:00:15,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347049320] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:15,275 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:15,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:15,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143591764] [2021-11-19 14:00:15,276 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:15,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:15,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:15,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:15,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:15,278 INFO L87 Difference]: Start difference. First operand 2129 states and 2978 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:00:15,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:15,497 INFO L93 Difference]: Finished difference Result 2129 states and 2978 transitions. [2021-11-19 14:00:15,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:15,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 73 [2021-11-19 14:00:15,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:15,514 INFO L225 Difference]: With dead ends: 2129 [2021-11-19 14:00:15,515 INFO L226 Difference]: Without dead ends: 2127 [2021-11-19 14:00:15,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:15,517 INFO L933 BasicCegarLoop]: 2958 mSDtfsCounter, 2900 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2902 SdHoareTripleChecker+Valid, 5914 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:15,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2902 Valid, 5914 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:15,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2021-11-19 14:00:15,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 2127. [2021-11-19 14:00:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 1425 states have (on average 1.2996491228070175) internal successors, (1852), 1510 states have internal predecessors, (1852), 563 states have call successors, (563), 114 states have call predecessors, (563), 113 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-19 14:00:15,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 2976 transitions. [2021-11-19 14:00:15,656 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 2976 transitions. Word has length 73 [2021-11-19 14:00:15,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:15,657 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 2976 transitions. [2021-11-19 14:00:15,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:00:15,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 2976 transitions. [2021-11-19 14:00:15,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-19 14:00:15,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:15,659 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:15,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:15,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:15,879 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:15,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:15,880 INFO L85 PathProgramCache]: Analyzing trace with hash 899638919, now seen corresponding path program 1 times [2021-11-19 14:00:15,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:15,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477424343] [2021-11-19 14:00:15,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:15,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:15,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:15,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:15,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:00:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:16,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:16,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:17,482 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:17,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:17,818 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:17,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477424343] [2021-11-19 14:00:17,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477424343] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:17,819 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:17,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:17,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244960927] [2021-11-19 14:00:17,819 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:17,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:17,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:17,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:17,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:17,821 INFO L87 Difference]: Start difference. First operand 2127 states and 2976 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:00:17,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:17,981 INFO L93 Difference]: Finished difference Result 2127 states and 2976 transitions. [2021-11-19 14:00:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:17,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 79 [2021-11-19 14:00:17,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:17,998 INFO L225 Difference]: With dead ends: 2127 [2021-11-19 14:00:17,999 INFO L226 Difference]: Without dead ends: 2125 [2021-11-19 14:00:18,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:18,001 INFO L933 BasicCegarLoop]: 2956 mSDtfsCounter, 2892 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:18,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2894 Valid, 5910 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:18,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2021-11-19 14:00:18,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 2125. [2021-11-19 14:00:18,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 1424 states have (on average 1.2991573033707866) internal successors, (1850), 1508 states have internal predecessors, (1850), 563 states have call successors, (563), 114 states have call predecessors, (563), 113 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-19 14:00:18,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 2974 transitions. [2021-11-19 14:00:18,150 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 2974 transitions. Word has length 79 [2021-11-19 14:00:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:18,151 INFO L470 AbstractCegarLoop]: Abstraction has 2125 states and 2974 transitions. [2021-11-19 14:00:18,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:00:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 2974 transitions. [2021-11-19 14:00:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-19 14:00:18,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:18,153 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:18,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:18,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:18,370 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:18,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:18,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1031673593, now seen corresponding path program 1 times [2021-11-19 14:00:18,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:18,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493827848] [2021-11-19 14:00:18,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:18,371 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:18,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:18,372 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:18,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:00:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:19,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:00:19,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:20,235 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:00:20,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 14:00:21,179 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:21,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493827848] [2021-11-19 14:00:21,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493827848] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:00:21,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [578116612] [2021-11-19 14:00:21,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:21,180 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:21,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:00:21,186 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:00:21,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-19 14:00:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:23,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:00:23,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:24,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:24,862 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:24,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [578116612] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:24,863 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:00:24,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [17, 17] total 25 [2021-11-19 14:00:24,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813638907] [2021-11-19 14:00:24,863 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:24,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:00:24,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:24,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:00:24,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:00:24,864 INFO L87 Difference]: Start difference. First operand 2125 states and 2974 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:00:25,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:25,311 INFO L93 Difference]: Finished difference Result 2144 states and 2989 transitions. [2021-11-19 14:00:25,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:00:25,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 84 [2021-11-19 14:00:25,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:25,328 INFO L225 Difference]: With dead ends: 2144 [2021-11-19 14:00:25,328 INFO L226 Difference]: Without dead ends: 2142 [2021-11-19 14:00:25,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:00:25,332 INFO L933 BasicCegarLoop]: 2963 mSDtfsCounter, 2880 mSDsluCounter, 5953 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 8916 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:25,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2883 Valid, 8916 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2021-11-19 14:00:25,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2140. [2021-11-19 14:00:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1435 states have (on average 1.2975609756097561) internal successors, (1862), 1519 states have internal predecessors, (1862), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-19 14:00:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2986 transitions. [2021-11-19 14:00:25,500 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2986 transitions. Word has length 84 [2021-11-19 14:00:25,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:25,502 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2986 transitions. [2021-11-19 14:00:25,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:00:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2986 transitions. [2021-11-19 14:00:25,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-19 14:00:25,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:25,511 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:25,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:25,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:25,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:25,928 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:25,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:25,929 INFO L85 PathProgramCache]: Analyzing trace with hash 939608448, now seen corresponding path program 1 times [2021-11-19 14:00:25,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:25,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149809508] [2021-11-19 14:00:25,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:25,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:25,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:25,932 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:25,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:00:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:26,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:26,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:27,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:27,697 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:27,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149809508] [2021-11-19 14:00:27,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149809508] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:27,697 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:27,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:27,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858070930] [2021-11-19 14:00:27,697 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:27,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:27,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:27,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:27,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:27,699 INFO L87 Difference]: Start difference. First operand 2140 states and 2986 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:00:27,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:27,916 INFO L93 Difference]: Finished difference Result 2140 states and 2986 transitions. [2021-11-19 14:00:27,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:27,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 85 [2021-11-19 14:00:27,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:27,932 INFO L225 Difference]: With dead ends: 2140 [2021-11-19 14:00:27,932 INFO L226 Difference]: Without dead ends: 2138 [2021-11-19 14:00:27,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:27,934 INFO L933 BasicCegarLoop]: 2954 mSDtfsCounter, 2881 mSDsluCounter, 5904 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 8858 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:27,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2883 Valid, 8858 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:27,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2021-11-19 14:00:28,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2138. [2021-11-19 14:00:28,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 1434 states have (on average 1.297071129707113) internal successors, (1860), 1517 states have internal predecessors, (1860), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-19 14:00:28,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 2984 transitions. [2021-11-19 14:00:28,081 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 2984 transitions. Word has length 85 [2021-11-19 14:00:28,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:28,081 INFO L470 AbstractCegarLoop]: Abstraction has 2138 states and 2984 transitions. [2021-11-19 14:00:28,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:00:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 2984 transitions. [2021-11-19 14:00:28,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-19 14:00:28,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:28,083 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:28,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:28,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:28,306 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:28,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:28,306 INFO L85 PathProgramCache]: Analyzing trace with hash 646919525, now seen corresponding path program 1 times [2021-11-19 14:00:28,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:28,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420766864] [2021-11-19 14:00:28,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:28,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:28,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:28,308 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:28,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:00:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:29,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:29,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:29,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:29,971 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:29,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420766864] [2021-11-19 14:00:29,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420766864] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:29,971 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:29,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:29,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075770327] [2021-11-19 14:00:29,972 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:29,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:29,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:29,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:29,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:29,973 INFO L87 Difference]: Start difference. First operand 2138 states and 2984 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:00:30,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:30,158 INFO L93 Difference]: Finished difference Result 2138 states and 2984 transitions. [2021-11-19 14:00:30,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:30,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 91 [2021-11-19 14:00:30,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:30,174 INFO L225 Difference]: With dead ends: 2138 [2021-11-19 14:00:30,174 INFO L226 Difference]: Without dead ends: 2136 [2021-11-19 14:00:30,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:30,177 INFO L933 BasicCegarLoop]: 2952 mSDtfsCounter, 2873 mSDsluCounter, 5900 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2875 SdHoareTripleChecker+Valid, 8852 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:30,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2875 Valid, 8852 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:30,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2021-11-19 14:00:30,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2136. [2021-11-19 14:00:30,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 1433 states have (on average 1.2965806001395674) internal successors, (1858), 1515 states have internal predecessors, (1858), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-19 14:00:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2982 transitions. [2021-11-19 14:00:30,360 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2982 transitions. Word has length 91 [2021-11-19 14:00:30,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:30,361 INFO L470 AbstractCegarLoop]: Abstraction has 2136 states and 2982 transitions. [2021-11-19 14:00:30,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:00:30,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2982 transitions. [2021-11-19 14:00:30,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-19 14:00:30,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:30,365 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] [2021-11-19 14:00:30,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:30,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:30,581 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:30,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:30,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1587490793, now seen corresponding path program 1 times [2021-11-19 14:00:30,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:30,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533957152] [2021-11-19 14:00:30,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:30,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:30,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:30,584 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:30,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:00:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:31,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:00:31,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:00:32,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:33,157 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 14:00:33,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:33,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533957152] [2021-11-19 14:00:33,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533957152] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:00:33,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [642945492] [2021-11-19 14:00:33,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:33,158 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:33,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:00:33,159 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:00:33,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-19 14:00:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:34,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:00:34,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:34,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:34,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [642945492] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:34,928 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:00:34,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [17, 17] total 26 [2021-11-19 14:00:34,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951567626] [2021-11-19 14:00:34,929 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:34,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:00:34,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:34,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:00:34,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=594, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:00:34,931 INFO L87 Difference]: Start difference. First operand 2136 states and 2982 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-19 14:00:36,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:00:37,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:37,363 INFO L93 Difference]: Finished difference Result 2138 states and 2983 transitions. [2021-11-19 14:00:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:00:37,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2021-11-19 14:00:37,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:37,380 INFO L225 Difference]: With dead ends: 2138 [2021-11-19 14:00:37,380 INFO L226 Difference]: Without dead ends: 2136 [2021-11-19 14:00:37,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:00:37,383 INFO L933 BasicCegarLoop]: 2953 mSDtfsCounter, 33 mSDsluCounter, 11765 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 14718 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:37,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 14718 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:00:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2021-11-19 14:00:37,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2136. [2021-11-19 14:00:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 1433 states have (on average 1.2958827634333565) internal successors, (1857), 1515 states have internal predecessors, (1857), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-19 14:00:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2981 transitions. [2021-11-19 14:00:37,551 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2981 transitions. Word has length 95 [2021-11-19 14:00:37,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:37,552 INFO L470 AbstractCegarLoop]: Abstraction has 2136 states and 2981 transitions. [2021-11-19 14:00:37,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-19 14:00:37,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2981 transitions. [2021-11-19 14:00:37,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-19 14:00:37,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:37,555 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:37,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:37,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-11-19 14:00:37,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:37,978 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:37,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:37,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1307078380, now seen corresponding path program 1 times [2021-11-19 14:00:37,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:37,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275029644] [2021-11-19 14:00:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:37,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:37,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:37,980 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:37,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:00:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:38,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:38,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:39,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:39,760 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:39,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:39,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275029644] [2021-11-19 14:00:39,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275029644] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:39,761 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:39,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:39,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172010188] [2021-11-19 14:00:39,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:39,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:39,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:39,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:39,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:39,763 INFO L87 Difference]: Start difference. First operand 2136 states and 2981 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:00:39,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:39,936 INFO L93 Difference]: Finished difference Result 2136 states and 2981 transitions. [2021-11-19 14:00:39,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:39,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 97 [2021-11-19 14:00:39,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:39,953 INFO L225 Difference]: With dead ends: 2136 [2021-11-19 14:00:39,953 INFO L226 Difference]: Without dead ends: 2134 [2021-11-19 14:00:39,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:39,956 INFO L933 BasicCegarLoop]: 2950 mSDtfsCounter, 2865 mSDsluCounter, 5896 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 8846 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:39,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2867 Valid, 8846 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2021-11-19 14:00:40,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2134. [2021-11-19 14:00:40,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1432 states have (on average 1.295391061452514) internal successors, (1855), 1513 states have internal predecessors, (1855), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-19 14:00:40,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2979 transitions. [2021-11-19 14:00:40,127 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2979 transitions. Word has length 97 [2021-11-19 14:00:40,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:40,128 INFO L470 AbstractCegarLoop]: Abstraction has 2134 states and 2979 transitions. [2021-11-19 14:00:40,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:00:40,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2979 transitions. [2021-11-19 14:00:40,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 14:00:40,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:40,131 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:40,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:40,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:40,345 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:40,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:40,346 INFO L85 PathProgramCache]: Analyzing trace with hash -500874874, now seen corresponding path program 1 times [2021-11-19 14:00:40,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:40,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92384758] [2021-11-19 14:00:40,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:40,347 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:40,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:40,348 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:40,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:00:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:41,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 14:00:41,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:42,498 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:00:42,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-19 14:00:44,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:44,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92384758] [2021-11-19 14:00:44,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92384758] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:00:44,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:00:44,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-19 14:00:44,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468439175] [2021-11-19 14:00:44,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:44,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:00:44,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:44,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:00:44,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-19 14:00:44,428 INFO L87 Difference]: Start difference. First operand 2134 states and 2979 transitions. Second operand has 12 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:00:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:46,296 INFO L93 Difference]: Finished difference Result 4851 states and 6878 transitions. [2021-11-19 14:00:46,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:00:46,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) Word has length 108 [2021-11-19 14:00:46,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:46,331 INFO L225 Difference]: With dead ends: 4851 [2021-11-19 14:00:46,331 INFO L226 Difference]: Without dead ends: 2752 [2021-11-19 14:00:46,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:00:46,343 INFO L933 BasicCegarLoop]: 3892 mSDtfsCounter, 773 mSDsluCounter, 33962 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 37854 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:46,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 37854 Invalid, 317 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 14:00:46,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-11-19 14:00:46,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2134. [2021-11-19 14:00:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1432 states have (on average 1.2946927374301676) internal successors, (1854), 1512 states have internal predecessors, (1854), 563 states have call successors, (563), 118 states have call predecessors, (563), 117 states have return successors, (561), 529 states have call predecessors, (561), 561 states have call successors, (561) [2021-11-19 14:00:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2978 transitions. [2021-11-19 14:00:46,522 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2978 transitions. Word has length 108 [2021-11-19 14:00:46,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:46,523 INFO L470 AbstractCegarLoop]: Abstraction has 2134 states and 2978 transitions. [2021-11-19 14:00:46,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:00:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2978 transitions. [2021-11-19 14:00:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-19 14:00:46,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:46,526 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:46,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:46,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:46,741 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1791612701, now seen corresponding path program 1 times [2021-11-19 14:00:46,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:46,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904688582] [2021-11-19 14:00:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:46,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:46,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:46,744 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:46,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:00:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:47,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:00:47,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-19 14:00:48,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:48,703 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 14:00:48,703 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:48,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904688582] [2021-11-19 14:00:48,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904688582] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:48,704 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:48,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:48,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028992854] [2021-11-19 14:00:48,704 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:48,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:48,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:48,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:48,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:48,705 INFO L87 Difference]: Start difference. First operand 2134 states and 2978 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:00:50,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:00:55,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:55,818 INFO L93 Difference]: Finished difference Result 4370 states and 6045 transitions. [2021-11-19 14:00:55,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:55,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 112 [2021-11-19 14:00:55,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:55,837 INFO L225 Difference]: With dead ends: 4370 [2021-11-19 14:00:55,837 INFO L226 Difference]: Without dead ends: 2273 [2021-11-19 14:00:55,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:55,850 INFO L933 BasicCegarLoop]: 3065 mSDtfsCounter, 3022 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3022 SdHoareTripleChecker+Valid, 5150 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:55,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3022 Valid, 5150 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1169 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-19 14:00:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-11-19 14:00:56,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2243. [2021-11-19 14:00:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 1518 states have (on average 1.2859025032938076) internal successors, (1952), 1598 states have internal predecessors, (1952), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:00:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 3078 transitions. [2021-11-19 14:00:56,052 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 3078 transitions. Word has length 112 [2021-11-19 14:00:56,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:56,053 INFO L470 AbstractCegarLoop]: Abstraction has 2243 states and 3078 transitions. [2021-11-19 14:00:56,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:00:56,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 3078 transitions. [2021-11-19 14:00:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-19 14:00:56,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:56,055 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:56,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:56,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:56,277 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:56,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:56,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1020705901, now seen corresponding path program 1 times [2021-11-19 14:00:56,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:56,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199545308] [2021-11-19 14:00:56,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:56,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:56,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:56,280 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:56,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:00:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:57,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:57,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:57,695 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:57,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:00:58,022 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:58,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199545308] [2021-11-19 14:00:58,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199545308] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:58,022 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:58,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:58,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256982520] [2021-11-19 14:00:58,023 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:58,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:58,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:58,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:58,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:58,024 INFO L87 Difference]: Start difference. First operand 2243 states and 3078 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:00:58,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:58,195 INFO L93 Difference]: Finished difference Result 2243 states and 3078 transitions. [2021-11-19 14:00:58,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:58,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 103 [2021-11-19 14:00:58,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:58,212 INFO L225 Difference]: With dead ends: 2243 [2021-11-19 14:00:58,212 INFO L226 Difference]: Without dead ends: 2241 [2021-11-19 14:00:58,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:58,214 INFO L933 BasicCegarLoop]: 2946 mSDtfsCounter, 2859 mSDsluCounter, 5880 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 8826 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:58,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2861 Valid, 8826 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:58,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2021-11-19 14:00:58,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2241. [2021-11-19 14:00:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 1517 states have (on average 1.2847725774555043) internal successors, (1949), 1596 states have internal predecessors, (1949), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:00:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3075 transitions. [2021-11-19 14:00:58,405 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 3075 transitions. Word has length 103 [2021-11-19 14:00:58,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:58,406 INFO L470 AbstractCegarLoop]: Abstraction has 2241 states and 3075 transitions. [2021-11-19 14:00:58,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:00:58,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 3075 transitions. [2021-11-19 14:00:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-19 14:00:58,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:58,409 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:58,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:58,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:58,621 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:00:58,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:58,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1645689226, now seen corresponding path program 1 times [2021-11-19 14:00:58,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:58,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576142017] [2021-11-19 14:00:58,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:58,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:58,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:58,625 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:58,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:00:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:59,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:59,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:00,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:00,485 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:00,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:00,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576142017] [2021-11-19 14:01:00,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576142017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:00,485 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:00,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:00,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716852313] [2021-11-19 14:01:00,486 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:00,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:00,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:00,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:00,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:00,487 INFO L87 Difference]: Start difference. First operand 2241 states and 3075 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:01:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:00,658 INFO L93 Difference]: Finished difference Result 2241 states and 3075 transitions. [2021-11-19 14:01:00,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:00,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 105 [2021-11-19 14:01:00,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:00,676 INFO L225 Difference]: With dead ends: 2241 [2021-11-19 14:01:00,677 INFO L226 Difference]: Without dead ends: 2239 [2021-11-19 14:01:00,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:00,679 INFO L933 BasicCegarLoop]: 2944 mSDtfsCounter, 2851 mSDsluCounter, 5884 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2853 SdHoareTripleChecker+Valid, 8828 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:00,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2853 Valid, 8828 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:00,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2021-11-19 14:01:00,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 2239. [2021-11-19 14:01:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 1516 states have (on average 1.2836411609498681) internal successors, (1946), 1594 states have internal predecessors, (1946), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 3072 transitions. [2021-11-19 14:01:00,888 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 3072 transitions. Word has length 105 [2021-11-19 14:01:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:00,888 INFO L470 AbstractCegarLoop]: Abstraction has 2239 states and 3072 transitions. [2021-11-19 14:01:00,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:01:00,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 3072 transitions. [2021-11-19 14:01:00,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-19 14:01:00,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:00,891 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:00,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:01,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:01,113 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:01,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:01,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1257847071, now seen corresponding path program 1 times [2021-11-19 14:01:01,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:01,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818309409] [2021-11-19 14:01:01,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:01,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:01,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:01,115 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:01,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:01:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:02,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:01:02,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 14:01:02,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 14:01:02,631 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:02,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818309409] [2021-11-19 14:01:02,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818309409] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:02,631 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:02,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:01:02,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264275023] [2021-11-19 14:01:02,632 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:02,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:01:02,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:02,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:01:02,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:01:02,633 INFO L87 Difference]: Start difference. First operand 2239 states and 3072 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-19 14:01:02,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:02,862 INFO L93 Difference]: Finished difference Result 4437 states and 6088 transitions. [2021-11-19 14:01:02,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:01:02,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 118 [2021-11-19 14:01:02,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:02,875 INFO L225 Difference]: With dead ends: 4437 [2021-11-19 14:01:02,875 INFO L226 Difference]: Without dead ends: 2235 [2021-11-19 14:01:02,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:01:02,887 INFO L933 BasicCegarLoop]: 2940 mSDtfsCounter, 2924 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:02,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2924 Valid, 2940 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:01:02,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2021-11-19 14:01:03,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2235. [2021-11-19 14:01:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 1513 states have (on average 1.2828816920026438) internal successors, (1941), 1590 states have internal predecessors, (1941), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:03,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3067 transitions. [2021-11-19 14:01:03,097 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3067 transitions. Word has length 118 [2021-11-19 14:01:03,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:03,098 INFO L470 AbstractCegarLoop]: Abstraction has 2235 states and 3067 transitions. [2021-11-19 14:01:03,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-19 14:01:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3067 transitions. [2021-11-19 14:01:03,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-19 14:01:03,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:03,100 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:03,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:03,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:03,313 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:03,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:03,314 INFO L85 PathProgramCache]: Analyzing trace with hash -906403881, now seen corresponding path program 1 times [2021-11-19 14:01:03,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:03,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021551887] [2021-11-19 14:01:03,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:03,315 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:03,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:03,317 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:03,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 14:01:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:04,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:04,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:04,750 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:04,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:05,091 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:05,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:05,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021551887] [2021-11-19 14:01:05,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021551887] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:05,092 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:05,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:05,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949244505] [2021-11-19 14:01:05,092 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:05,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:05,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:05,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:05,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:05,094 INFO L87 Difference]: Start difference. First operand 2235 states and 3067 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:01:05,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:05,256 INFO L93 Difference]: Finished difference Result 2235 states and 3067 transitions. [2021-11-19 14:01:05,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:05,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 111 [2021-11-19 14:01:05,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:05,263 INFO L225 Difference]: With dead ends: 2235 [2021-11-19 14:01:05,263 INFO L226 Difference]: Without dead ends: 2233 [2021-11-19 14:01:05,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:05,265 INFO L933 BasicCegarLoop]: 2937 mSDtfsCounter, 2841 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 5872 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:05,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2843 Valid, 5872 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:05,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2021-11-19 14:01:05,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 2233. [2021-11-19 14:01:05,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2233 states, 1512 states have (on average 1.2817460317460319) internal successors, (1938), 1588 states have internal predecessors, (1938), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:05,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 3064 transitions. [2021-11-19 14:01:05,491 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 3064 transitions. Word has length 111 [2021-11-19 14:01:05,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:05,492 INFO L470 AbstractCegarLoop]: Abstraction has 2233 states and 3064 transitions. [2021-11-19 14:01:05,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:01:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 3064 transitions. [2021-11-19 14:01:05,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-19 14:01:05,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:05,495 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:05,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:05,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:05,721 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:05,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:05,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1776112754, now seen corresponding path program 1 times [2021-11-19 14:01:05,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:05,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493796603] [2021-11-19 14:01:05,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:05,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:05,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:05,725 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:05,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:01:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:06,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:01:06,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:07,235 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-19 14:01:07,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:07,524 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-19 14:01:07,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:07,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493796603] [2021-11-19 14:01:07,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493796603] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:07,524 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:07,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:01:07,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006174918] [2021-11-19 14:01:07,525 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:07,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:01:07,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:07,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:01:07,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:01:07,526 INFO L87 Difference]: Start difference. First operand 2233 states and 3064 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 14:01:09,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:09,532 INFO L93 Difference]: Finished difference Result 4425 states and 6072 transitions. [2021-11-19 14:01:09,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:01:09,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 124 [2021-11-19 14:01:09,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:09,546 INFO L225 Difference]: With dead ends: 4425 [2021-11-19 14:01:09,546 INFO L226 Difference]: Without dead ends: 2229 [2021-11-19 14:01:09,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:01:09,558 INFO L933 BasicCegarLoop]: 2933 mSDtfsCounter, 4712 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4712 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1115 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:09,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4712 Valid, 2933 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1115 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-19 14:01:09,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2021-11-19 14:01:09,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2229. [2021-11-19 14:01:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 1509 states have (on average 1.2809807819748178) internal successors, (1933), 1584 states have internal predecessors, (1933), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3059 transitions. [2021-11-19 14:01:09,836 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3059 transitions. Word has length 124 [2021-11-19 14:01:09,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:09,837 INFO L470 AbstractCegarLoop]: Abstraction has 2229 states and 3059 transitions. [2021-11-19 14:01:09,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 14:01:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3059 transitions. [2021-11-19 14:01:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-19 14:01:09,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:09,840 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:09,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:10,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:10,054 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:10,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:10,054 INFO L85 PathProgramCache]: Analyzing trace with hash -283647224, now seen corresponding path program 1 times [2021-11-19 14:01:10,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:10,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730996211] [2021-11-19 14:01:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:10,055 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:10,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:10,056 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:10,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:01:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:10,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:10,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:11,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:11,926 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:11,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730996211] [2021-11-19 14:01:11,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730996211] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:11,926 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:11,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:11,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729066000] [2021-11-19 14:01:11,927 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:11,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:11,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:11,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:11,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:11,928 INFO L87 Difference]: Start difference. First operand 2229 states and 3059 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:01:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:12,264 INFO L93 Difference]: Finished difference Result 2229 states and 3059 transitions. [2021-11-19 14:01:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:12,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 117 [2021-11-19 14:01:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:12,273 INFO L225 Difference]: With dead ends: 2229 [2021-11-19 14:01:12,273 INFO L226 Difference]: Without dead ends: 2227 [2021-11-19 14:01:12,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:12,275 INFO L933 BasicCegarLoop]: 2930 mSDtfsCounter, 2825 mSDsluCounter, 5856 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2827 SdHoareTripleChecker+Valid, 8786 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:12,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2827 Valid, 8786 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2021-11-19 14:01:12,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2227. [2021-11-19 14:01:12,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1508 states have (on average 1.279840848806366) internal successors, (1930), 1582 states have internal predecessors, (1930), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:12,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3056 transitions. [2021-11-19 14:01:12,455 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3056 transitions. Word has length 117 [2021-11-19 14:01:12,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:12,456 INFO L470 AbstractCegarLoop]: Abstraction has 2227 states and 3056 transitions. [2021-11-19 14:01:12,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:01:12,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3056 transitions. [2021-11-19 14:01:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-19 14:01:12,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:12,458 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:12,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:12,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:12,660 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:12,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:12,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1320011400, now seen corresponding path program 1 times [2021-11-19 14:01:12,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:12,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888447938] [2021-11-19 14:01:12,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:12,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:12,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:12,663 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:12,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 14:01:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:13,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:13,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:14,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:14,514 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:14,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:14,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888447938] [2021-11-19 14:01:14,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888447938] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:14,514 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:14,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:14,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104382195] [2021-11-19 14:01:14,515 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:14,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:14,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:14,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:14,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:14,516 INFO L87 Difference]: Start difference. First operand 2227 states and 3056 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:01:14,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:14,713 INFO L93 Difference]: Finished difference Result 2227 states and 3056 transitions. [2021-11-19 14:01:14,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:14,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 123 [2021-11-19 14:01:14,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:14,723 INFO L225 Difference]: With dead ends: 2227 [2021-11-19 14:01:14,723 INFO L226 Difference]: Without dead ends: 2225 [2021-11-19 14:01:14,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:14,725 INFO L933 BasicCegarLoop]: 2928 mSDtfsCounter, 2820 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2822 SdHoareTripleChecker+Valid, 5854 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:14,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2822 Valid, 5854 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:14,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2021-11-19 14:01:14,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2225. [2021-11-19 14:01:14,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 1507 states have (on average 1.278699402786994) internal successors, (1927), 1580 states have internal predecessors, (1927), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 3053 transitions. [2021-11-19 14:01:14,979 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 3053 transitions. Word has length 123 [2021-11-19 14:01:14,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:14,979 INFO L470 AbstractCegarLoop]: Abstraction has 2225 states and 3053 transitions. [2021-11-19 14:01:14,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:01:14,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 3053 transitions. [2021-11-19 14:01:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-19 14:01:14,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:14,982 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:15,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:15,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:15,197 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:15,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:15,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2123786986, now seen corresponding path program 1 times [2021-11-19 14:01:15,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:15,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065222578] [2021-11-19 14:01:15,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:15,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:15,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:15,200 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:15,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 14:01:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:15,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:15,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:16,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:17,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:17,081 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:17,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065222578] [2021-11-19 14:01:17,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065222578] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:17,081 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:17,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:17,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182092677] [2021-11-19 14:01:17,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:17,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:17,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:17,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:17,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:17,084 INFO L87 Difference]: Start difference. First operand 2225 states and 3053 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:01:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:17,306 INFO L93 Difference]: Finished difference Result 2225 states and 3053 transitions. [2021-11-19 14:01:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:17,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 129 [2021-11-19 14:01:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:17,315 INFO L225 Difference]: With dead ends: 2225 [2021-11-19 14:01:17,315 INFO L226 Difference]: Without dead ends: 2223 [2021-11-19 14:01:17,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:17,317 INFO L933 BasicCegarLoop]: 2926 mSDtfsCounter, 2809 mSDsluCounter, 5848 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 8774 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:17,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 8774 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2021-11-19 14:01:17,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2223. [2021-11-19 14:01:17,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2223 states, 1506 states have (on average 1.2775564409030544) internal successors, (1924), 1578 states have internal predecessors, (1924), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 3050 transitions. [2021-11-19 14:01:17,526 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 3050 transitions. Word has length 129 [2021-11-19 14:01:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:17,526 INFO L470 AbstractCegarLoop]: Abstraction has 2223 states and 3050 transitions. [2021-11-19 14:01:17,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:01:17,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 3050 transitions. [2021-11-19 14:01:17,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-19 14:01:17,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:17,528 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:17,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:17,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:17,730 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:17,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:17,730 INFO L85 PathProgramCache]: Analyzing trace with hash 847759442, now seen corresponding path program 1 times [2021-11-19 14:01:17,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:17,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457851596] [2021-11-19 14:01:17,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:17,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:17,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:17,732 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:17,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 14:01:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:18,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:18,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:19,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:19,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:19,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:19,717 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:19,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457851596] [2021-11-19 14:01:19,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457851596] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:19,717 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:19,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:19,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51914888] [2021-11-19 14:01:19,718 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:19,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:19,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:19,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:19,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:19,720 INFO L87 Difference]: Start difference. First operand 2223 states and 3050 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:01:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:19,904 INFO L93 Difference]: Finished difference Result 2223 states and 3050 transitions. [2021-11-19 14:01:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:19,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 135 [2021-11-19 14:01:19,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:19,913 INFO L225 Difference]: With dead ends: 2223 [2021-11-19 14:01:19,914 INFO L226 Difference]: Without dead ends: 2221 [2021-11-19 14:01:19,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:19,916 INFO L933 BasicCegarLoop]: 2924 mSDtfsCounter, 2804 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:19,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2806 Valid, 5846 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:19,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2021-11-19 14:01:20,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2221. [2021-11-19 14:01:20,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 1505 states have (on average 1.2764119601328903) internal successors, (1921), 1576 states have internal predecessors, (1921), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3047 transitions. [2021-11-19 14:01:20,217 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3047 transitions. Word has length 135 [2021-11-19 14:01:20,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:20,218 INFO L470 AbstractCegarLoop]: Abstraction has 2221 states and 3047 transitions. [2021-11-19 14:01:20,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:01:20,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3047 transitions. [2021-11-19 14:01:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-19 14:01:20,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:20,226 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:20,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:20,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:20,448 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:20,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:20,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1184548556, now seen corresponding path program 1 times [2021-11-19 14:01:20,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:20,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24737153] [2021-11-19 14:01:20,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:20,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:20,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:20,450 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:20,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 14:01:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:21,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:21,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:22,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:22,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:22,766 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:22,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24737153] [2021-11-19 14:01:22,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24737153] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:22,766 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:22,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 14:01:22,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015272401] [2021-11-19 14:01:22,766 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:22,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:01:22,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:22,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:01:22,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:22,768 INFO L87 Difference]: Start difference. First operand 2221 states and 3047 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:01:23,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:23,031 INFO L93 Difference]: Finished difference Result 2221 states and 3047 transitions. [2021-11-19 14:01:23,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:23,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 141 [2021-11-19 14:01:23,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:23,042 INFO L225 Difference]: With dead ends: 2221 [2021-11-19 14:01:23,042 INFO L226 Difference]: Without dead ends: 2219 [2021-11-19 14:01:23,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:01:23,044 INFO L933 BasicCegarLoop]: 2922 mSDtfsCounter, 2866 mSDsluCounter, 2920 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2868 SdHoareTripleChecker+Valid, 5842 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:23,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2868 Valid, 5842 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2021-11-19 14:01:23,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2021-11-19 14:01:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1504 states have (on average 1.2752659574468086) internal successors, (1918), 1574 states have internal predecessors, (1918), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:23,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3044 transitions. [2021-11-19 14:01:23,380 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3044 transitions. Word has length 141 [2021-11-19 14:01:23,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:23,381 INFO L470 AbstractCegarLoop]: Abstraction has 2219 states and 3044 transitions. [2021-11-19 14:01:23,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:01:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3044 transitions. [2021-11-19 14:01:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-19 14:01:23,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:23,384 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:23,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:23,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:23,597 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:23,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash 2065504485, now seen corresponding path program 1 times [2021-11-19 14:01:23,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:23,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108590955] [2021-11-19 14:01:23,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:23,599 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:23,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:23,600 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:23,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 14:01:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:24,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:24,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:25,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:25,653 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:25,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108590955] [2021-11-19 14:01:25,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108590955] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:25,653 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:25,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:25,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207421798] [2021-11-19 14:01:25,654 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:25,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:25,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:25,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:25,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:25,656 INFO L87 Difference]: Start difference. First operand 2219 states and 3044 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:01:25,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:25,881 INFO L93 Difference]: Finished difference Result 2219 states and 3044 transitions. [2021-11-19 14:01:25,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:25,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 147 [2021-11-19 14:01:25,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:25,888 INFO L225 Difference]: With dead ends: 2219 [2021-11-19 14:01:25,888 INFO L226 Difference]: Without dead ends: 2217 [2021-11-19 14:01:25,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:25,891 INFO L933 BasicCegarLoop]: 2920 mSDtfsCounter, 2785 mSDsluCounter, 5836 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 8756 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:25,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2787 Valid, 8756 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:25,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2021-11-19 14:01:26,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2217. [2021-11-19 14:01:26,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2217 states, 1503 states have (on average 1.2741184298070525) internal successors, (1915), 1572 states have internal predecessors, (1915), 564 states have call successors, (564), 140 states have call predecessors, (564), 139 states have return successors, (562), 530 states have call predecessors, (562), 562 states have call successors, (562) [2021-11-19 14:01:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2217 states to 2217 states and 3041 transitions. [2021-11-19 14:01:26,178 INFO L78 Accepts]: Start accepts. Automaton has 2217 states and 3041 transitions. Word has length 147 [2021-11-19 14:01:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:26,178 INFO L470 AbstractCegarLoop]: Abstraction has 2217 states and 3041 transitions. [2021-11-19 14:01:26,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:01:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2217 states and 3041 transitions. [2021-11-19 14:01:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-19 14:01:26,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:26,182 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:26,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:26,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:26,397 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:26,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:26,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1261180084, now seen corresponding path program 1 times [2021-11-19 14:01:26,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:26,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33886640] [2021-11-19 14:01:26,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:26,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:26,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:26,400 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:26,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 14:01:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:27,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:01:27,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-19 14:01:28,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-11-19 14:01:29,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:29,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33886640] [2021-11-19 14:01:29,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33886640] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:01:29,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1817543403] [2021-11-19 14:01:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:29,592 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:01:29,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:01:29,603 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:01:29,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2021-11-19 14:01:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:32,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:01:32,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 14:01:33,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 14:01:34,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1817543403] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:34,562 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:01:34,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [17, 17] total 25 [2021-11-19 14:01:34,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091275626] [2021-11-19 14:01:34,563 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:34,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:01:34,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:34,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:01:34,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:01:34,565 INFO L87 Difference]: Start difference. First operand 2217 states and 3041 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:01:35,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:35,140 INFO L93 Difference]: Finished difference Result 2702 states and 3707 transitions. [2021-11-19 14:01:35,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:01:35,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 193 [2021-11-19 14:01:35,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:35,154 INFO L225 Difference]: With dead ends: 2702 [2021-11-19 14:01:35,155 INFO L226 Difference]: Without dead ends: 2700 [2021-11-19 14:01:35,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 745 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:01:35,158 INFO L933 BasicCegarLoop]: 3127 mSDtfsCounter, 2235 mSDsluCounter, 13717 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 16844 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:35,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2238 Valid, 16844 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:01:35,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2021-11-19 14:01:35,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2690. [2021-11-19 14:01:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 1791 states have (on average 1.2668900055834729) internal successors, (2269), 1897 states have internal predecessors, (2269), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-19 14:01:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3699 transitions. [2021-11-19 14:01:35,552 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3699 transitions. Word has length 193 [2021-11-19 14:01:35,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:35,553 INFO L470 AbstractCegarLoop]: Abstraction has 2690 states and 3699 transitions. [2021-11-19 14:01:35,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:01:35,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3699 transitions. [2021-11-19 14:01:35,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-19 14:01:35,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:35,556 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:35,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:35,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-11-19 14:01:35,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:35,970 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:35,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:35,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1212186328, now seen corresponding path program 1 times [2021-11-19 14:01:35,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:35,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484398302] [2021-11-19 14:01:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:35,972 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:35,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:35,973 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:35,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 14:01:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:36,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:36,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:37,598 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:37,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:38,044 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:38,044 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:38,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484398302] [2021-11-19 14:01:38,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484398302] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:38,045 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:38,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:38,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821206341] [2021-11-19 14:01:38,045 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:38,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:38,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:38,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:38,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:38,046 INFO L87 Difference]: Start difference. First operand 2690 states and 3699 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:01:38,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:38,317 INFO L93 Difference]: Finished difference Result 2690 states and 3699 transitions. [2021-11-19 14:01:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:38,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 153 [2021-11-19 14:01:38,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:38,323 INFO L225 Difference]: With dead ends: 2690 [2021-11-19 14:01:38,324 INFO L226 Difference]: Without dead ends: 2688 [2021-11-19 14:01:38,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:38,325 INFO L933 BasicCegarLoop]: 2918 mSDtfsCounter, 2780 mSDsluCounter, 2916 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 5834 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:38,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2782 Valid, 5834 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2688 states. [2021-11-19 14:01:38,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2688 to 2688. [2021-11-19 14:01:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2688 states, 1790 states have (on average 1.2659217877094973) internal successors, (2266), 1895 states have internal predecessors, (2266), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-19 14:01:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 3696 transitions. [2021-11-19 14:01:38,603 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 3696 transitions. Word has length 153 [2021-11-19 14:01:38,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:38,604 INFO L470 AbstractCegarLoop]: Abstraction has 2688 states and 3696 transitions. [2021-11-19 14:01:38,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:01:38,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 3696 transitions. [2021-11-19 14:01:38,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-19 14:01:38,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:38,606 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:38,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:38,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:38,809 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:38,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:38,810 INFO L85 PathProgramCache]: Analyzing trace with hash 903145121, now seen corresponding path program 1 times [2021-11-19 14:01:38,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:38,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806078524] [2021-11-19 14:01:38,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:38,811 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:38,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:38,812 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:38,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 14:01:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:39,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:39,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:40,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:41,168 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:41,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:41,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806078524] [2021-11-19 14:01:41,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806078524] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:41,169 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:41,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:41,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67172459] [2021-11-19 14:01:41,169 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:41,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:41,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:41,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:41,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:41,172 INFO L87 Difference]: Start difference. First operand 2688 states and 3696 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:01:41,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:41,606 INFO L93 Difference]: Finished difference Result 2688 states and 3696 transitions. [2021-11-19 14:01:41,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:41,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 159 [2021-11-19 14:01:41,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:41,617 INFO L225 Difference]: With dead ends: 2688 [2021-11-19 14:01:41,617 INFO L226 Difference]: Without dead ends: 2686 [2021-11-19 14:01:41,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:41,620 INFO L933 BasicCegarLoop]: 2916 mSDtfsCounter, 2769 mSDsluCounter, 5828 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2771 SdHoareTripleChecker+Valid, 8744 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:41,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2771 Valid, 8744 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:41,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-11-19 14:01:42,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2021-11-19 14:01:42,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 1789 states have (on average 1.2649524874231415) internal successors, (2263), 1893 states have internal predecessors, (2263), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-19 14:01:42,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 3693 transitions. [2021-11-19 14:01:42,056 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 3693 transitions. Word has length 159 [2021-11-19 14:01:42,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:42,056 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 3693 transitions. [2021-11-19 14:01:42,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:01:42,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 3693 transitions. [2021-11-19 14:01:42,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-19 14:01:42,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:42,059 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:42,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-11-19 14:01:42,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:42,260 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:42,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:42,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1741248427, now seen corresponding path program 1 times [2021-11-19 14:01:42,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:42,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490637554] [2021-11-19 14:01:42,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:42,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:42,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:42,262 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:42,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 14:01:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:43,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:43,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:44,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:44,606 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:44,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490637554] [2021-11-19 14:01:44,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490637554] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:44,606 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:44,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:44,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716069498] [2021-11-19 14:01:44,607 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:44,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:44,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:44,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:44,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:44,609 INFO L87 Difference]: Start difference. First operand 2686 states and 3693 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:01:44,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:44,991 INFO L93 Difference]: Finished difference Result 2686 states and 3693 transitions. [2021-11-19 14:01:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:44,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 165 [2021-11-19 14:01:44,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:45,001 INFO L225 Difference]: With dead ends: 2686 [2021-11-19 14:01:45,001 INFO L226 Difference]: Without dead ends: 2684 [2021-11-19 14:01:45,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:45,004 INFO L933 BasicCegarLoop]: 2914 mSDtfsCounter, 2761 mSDsluCounter, 5824 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 8738 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:45,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2763 Valid, 8738 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:45,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2021-11-19 14:01:45,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2684. [2021-11-19 14:01:45,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 1788 states have (on average 1.2639821029082774) internal successors, (2260), 1891 states have internal predecessors, (2260), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-19 14:01:45,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 3690 transitions. [2021-11-19 14:01:45,436 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 3690 transitions. Word has length 165 [2021-11-19 14:01:45,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:45,437 INFO L470 AbstractCegarLoop]: Abstraction has 2684 states and 3690 transitions. [2021-11-19 14:01:45,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:01:45,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 3690 transitions. [2021-11-19 14:01:45,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-19 14:01:45,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:45,442 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:45,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:45,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:45,658 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:45,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:45,658 INFO L85 PathProgramCache]: Analyzing trace with hash 565245805, now seen corresponding path program 1 times [2021-11-19 14:01:45,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:45,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877351072] [2021-11-19 14:01:45,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:45,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:45,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:45,661 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:45,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 14:01:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:46,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:46,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:47,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:01:48,015 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:48,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877351072] [2021-11-19 14:01:48,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877351072] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:48,015 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:48,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:48,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202410066] [2021-11-19 14:01:48,016 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:48,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:48,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:48,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:48,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:48,017 INFO L87 Difference]: Start difference. First operand 2684 states and 3690 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:01:48,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:48,319 INFO L93 Difference]: Finished difference Result 2684 states and 3690 transitions. [2021-11-19 14:01:48,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:48,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 171 [2021-11-19 14:01:48,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:48,329 INFO L225 Difference]: With dead ends: 2684 [2021-11-19 14:01:48,329 INFO L226 Difference]: Without dead ends: 2682 [2021-11-19 14:01:48,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:48,332 INFO L933 BasicCegarLoop]: 2912 mSDtfsCounter, 2753 mSDsluCounter, 5820 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 8732 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:48,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2755 Valid, 8732 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:48,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2021-11-19 14:01:48,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2682. [2021-11-19 14:01:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 1787 states have (on average 1.263010632344712) internal successors, (2257), 1889 states have internal predecessors, (2257), 691 states have call successors, (691), 199 states have call predecessors, (691), 197 states have return successors, (739), 629 states have call predecessors, (739), 689 states have call successors, (739) [2021-11-19 14:01:48,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3687 transitions. [2021-11-19 14:01:48,726 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3687 transitions. Word has length 171 [2021-11-19 14:01:48,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:48,727 INFO L470 AbstractCegarLoop]: Abstraction has 2682 states and 3687 transitions. [2021-11-19 14:01:48,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:01:48,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3687 transitions. [2021-11-19 14:01:48,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-19 14:01:48,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:48,732 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:48,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:48,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:48,945 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:01:48,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:48,946 INFO L85 PathProgramCache]: Analyzing trace with hash -769721255, now seen corresponding path program 1 times [2021-11-19 14:01:48,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:48,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166691276] [2021-11-19 14:01:48,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:48,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:48,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:48,948 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:48,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 14:01:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:49,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:01:49,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:51,227 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-19 14:01:51,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:52,326 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-19 14:01:52,326 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:52,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166691276] [2021-11-19 14:01:52,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166691276] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:01:52,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [502217166] [2021-11-19 14:01:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:52,327 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:01:52,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:01:52,329 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:01:52,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2021-11-19 14:01:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:55,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:01:55,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2021-11-19 14:01:56,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-19 14:01:57,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [502217166] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:57,826 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:01:57,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [17, 17] total 34 [2021-11-19 14:01:57,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267520428] [2021-11-19 14:01:57,826 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:57,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-19 14:01:57,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:57,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-19 14:01:57,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1046, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 14:01:57,828 INFO L87 Difference]: Start difference. First operand 2682 states and 3687 transitions. Second operand has 23 states, 21 states have (on average 4.666666666666667) internal successors, (98), 19 states have internal predecessors, (98), 8 states have call successors, (37), 2 states have call predecessors, (37), 7 states have return successors, (35), 10 states have call predecessors, (35), 8 states have call successors, (35) [2021-11-19 14:02:02,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:02,347 INFO L93 Difference]: Finished difference Result 5043 states and 6988 transitions. [2021-11-19 14:02:02,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-19 14:02:02,348 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 4.666666666666667) internal successors, (98), 19 states have internal predecessors, (98), 8 states have call successors, (37), 2 states have call predecessors, (37), 7 states have return successors, (35), 10 states have call predecessors, (35), 8 states have call successors, (35) Word has length 224 [2021-11-19 14:02:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:02,358 INFO L225 Difference]: With dead ends: 5043 [2021-11-19 14:02:02,358 INFO L226 Difference]: Without dead ends: 2952 [2021-11-19 14:02:02,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 916 GetRequests, 864 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=264, Invalid=2598, Unknown=0, NotChecked=0, Total=2862 [2021-11-19 14:02:02,368 INFO L933 BasicCegarLoop]: 3181 mSDtfsCounter, 449 mSDsluCounter, 46641 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 49822 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:02,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 49822 Invalid, 1065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [342 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:02:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-11-19 14:02:02,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2692. [2021-11-19 14:02:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 1794 states have (on average 1.261984392419175) internal successors, (2264), 1896 states have internal predecessors, (2264), 693 states have call successors, (693), 199 states have call predecessors, (693), 198 states have return successors, (743), 632 states have call predecessors, (743), 691 states have call successors, (743) [2021-11-19 14:02:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3700 transitions. [2021-11-19 14:02:02,730 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3700 transitions. Word has length 224 [2021-11-19 14:02:02,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:02,730 INFO L470 AbstractCegarLoop]: Abstraction has 2692 states and 3700 transitions. [2021-11-19 14:02:02,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 4.666666666666667) internal successors, (98), 19 states have internal predecessors, (98), 8 states have call successors, (37), 2 states have call predecessors, (37), 7 states have return successors, (35), 10 states have call predecessors, (35), 8 states have call successors, (35) [2021-11-19 14:02:02,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3700 transitions. [2021-11-19 14:02:02,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-19 14:02:02,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:02,735 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:02,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2021-11-19 14:02:02,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:03,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:03,156 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:02:03,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:03,156 INFO L85 PathProgramCache]: Analyzing trace with hash -307449643, now seen corresponding path program 1 times [2021-11-19 14:02:03,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:03,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055214625] [2021-11-19 14:02:03,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:03,158 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:03,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:03,159 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:03,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 14:02:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:04,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:04,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:05,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:02:05,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:02:05,604 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:05,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055214625] [2021-11-19 14:02:05,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055214625] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:05,604 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:05,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:05,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148696941] [2021-11-19 14:02:05,604 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:05,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:05,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:05,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:05,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:05,606 INFO L87 Difference]: Start difference. First operand 2692 states and 3700 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:02:05,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:05,947 INFO L93 Difference]: Finished difference Result 2692 states and 3700 transitions. [2021-11-19 14:02:05,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:05,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 177 [2021-11-19 14:02:05,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:05,956 INFO L225 Difference]: With dead ends: 2692 [2021-11-19 14:02:05,956 INFO L226 Difference]: Without dead ends: 2376 [2021-11-19 14:02:05,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:05,959 INFO L933 BasicCegarLoop]: 2911 mSDtfsCounter, 2744 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 5822 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:05,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2744 Valid, 5822 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2021-11-19 14:02:06,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 2376. [2021-11-19 14:02:06,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 1575 states have (on average 1.2926984126984127) internal successors, (2036), 1674 states have internal predecessors, (2036), 638 states have call successors, (638), 157 states have call predecessors, (638), 157 states have return successors, (690), 579 states have call predecessors, (690), 638 states have call successors, (690) [2021-11-19 14:02:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 3364 transitions. [2021-11-19 14:02:06,345 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 3364 transitions. Word has length 177 [2021-11-19 14:02:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:06,346 INFO L470 AbstractCegarLoop]: Abstraction has 2376 states and 3364 transitions. [2021-11-19 14:02:06,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:02:06,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 3364 transitions. [2021-11-19 14:02:06,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-19 14:02:06,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:06,351 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:06,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-11-19 14:02:06,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:06,574 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:02:06,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1086076658, now seen corresponding path program 1 times [2021-11-19 14:02:06,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:06,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767302190] [2021-11-19 14:02:06,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:06,576 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:06,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:06,576 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:06,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-19 14:02:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:07,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 14:02:07,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-19 14:02:08,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-11-19 14:02:09,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:09,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767302190] [2021-11-19 14:02:09,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767302190] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:09,756 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:09,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 18 [2021-11-19 14:02:09,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630225876] [2021-11-19 14:02:09,756 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:09,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 14:02:09,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:09,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 14:02:09,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:02:09,757 INFO L87 Difference]: Start difference. First operand 2376 states and 3364 transitions. Second operand has 18 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 7 states have call successors, (41), 2 states have call predecessors, (41), 6 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39) [2021-11-19 14:02:13,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:13,615 INFO L93 Difference]: Finished difference Result 5837 states and 8420 transitions. [2021-11-19 14:02:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 14:02:13,616 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 7 states have call successors, (41), 2 states have call predecessors, (41), 6 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39) Word has length 209 [2021-11-19 14:02:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:13,628 INFO L225 Difference]: With dead ends: 5837 [2021-11-19 14:02:13,629 INFO L226 Difference]: Without dead ends: 3485 [2021-11-19 14:02:13,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2021-11-19 14:02:13,640 INFO L933 BasicCegarLoop]: 4311 mSDtfsCounter, 3169 mSDsluCounter, 59847 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 1016 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3331 SdHoareTripleChecker+Valid, 64158 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1016 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:13,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3331 Valid, 64158 Invalid, 1726 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1016 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:02:13,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2021-11-19 14:02:14,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 2393. [2021-11-19 14:02:14,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 1587 states have (on average 1.2904851921865155) internal successors, (2048), 1686 states have internal predecessors, (2048), 642 states have call successors, (642), 157 states have call predecessors, (642), 158 states have return successors, (696), 584 states have call predecessors, (696), 642 states have call successors, (696) [2021-11-19 14:02:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3386 transitions. [2021-11-19 14:02:14,143 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3386 transitions. Word has length 209 [2021-11-19 14:02:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:14,144 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 3386 transitions. [2021-11-19 14:02:14,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 7 states have call successors, (41), 2 states have call predecessors, (41), 6 states have return successors, (39), 8 states have call predecessors, (39), 7 states have call successors, (39) [2021-11-19 14:02:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3386 transitions. [2021-11-19 14:02:14,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-19 14:02:14,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:14,147 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:14,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:14,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:14,370 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:02:14,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:14,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2058953978, now seen corresponding path program 1 times [2021-11-19 14:02:14,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:14,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452131811] [2021-11-19 14:02:14,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:14,372 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:14,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:14,373 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:14,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 14:02:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:15,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:02:15,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-11-19 14:02:16,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:17,947 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-19 14:02:17,947 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:17,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452131811] [2021-11-19 14:02:17,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452131811] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:02:17,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [640908797] [2021-11-19 14:02:17,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:17,948 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:02:17,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:02:17,949 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:02:17,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2021-11-19 14:02:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:19,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:19,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 14:02:19,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-19 14:02:19,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [640908797] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:19,877 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:02:19,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [17, 17] total 22 [2021-11-19 14:02:19,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805512090] [2021-11-19 14:02:19,878 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:19,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:02:19,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:19,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:02:19,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:02:19,879 INFO L87 Difference]: Start difference. First operand 2393 states and 3386 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:02:20,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:20,409 INFO L93 Difference]: Finished difference Result 4777 states and 6785 transitions. [2021-11-19 14:02:20,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:02:20,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 233 [2021-11-19 14:02:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:20,416 INFO L225 Difference]: With dead ends: 4777 [2021-11-19 14:02:20,416 INFO L226 Difference]: Without dead ends: 2409 [2021-11-19 14:02:20,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 908 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:02:20,425 INFO L933 BasicCegarLoop]: 2687 mSDtfsCounter, 15 mSDsluCounter, 5330 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8017 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:20,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 8017 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:02:20,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2021-11-19 14:02:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2395. [2021-11-19 14:02:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 1589 states have (on average 1.290119572057898) internal successors, (2050), 1688 states have internal predecessors, (2050), 642 states have call successors, (642), 157 states have call predecessors, (642), 158 states have return successors, (696), 584 states have call predecessors, (696), 642 states have call successors, (696) [2021-11-19 14:02:20,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 3388 transitions. [2021-11-19 14:02:20,771 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 3388 transitions. Word has length 233 [2021-11-19 14:02:20,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:20,772 INFO L470 AbstractCegarLoop]: Abstraction has 2395 states and 3388 transitions. [2021-11-19 14:02:20,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:02:20,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 3388 transitions. [2021-11-19 14:02:20,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-19 14:02:20,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:20,774 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:20,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:20,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:21,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:21,175 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:02:21,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:21,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1626073528, now seen corresponding path program 1 times [2021-11-19 14:02:21,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:21,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890653774] [2021-11-19 14:02:21,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:21,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:21,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:21,177 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:21,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-19 14:02:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:22,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:02:22,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 14:02:23,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-19 14:02:24,610 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:24,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890653774] [2021-11-19 14:02:24,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890653774] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:02:24,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [487293608] [2021-11-19 14:02:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:24,610 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:02:24,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:02:24,611 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:02:24,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2021-11-19 14:02:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:25,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:02:25,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-11-19 14:02:26,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-11-19 14:02:27,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [487293608] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:27,161 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:02:27,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [17, 17] total 26 [2021-11-19 14:02:27,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218438299] [2021-11-19 14:02:27,162 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:27,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:02:27,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:27,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:02:27,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=594, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:02:27,163 INFO L87 Difference]: Start difference. First operand 2395 states and 3388 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (42), 5 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 14:02:29,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:02:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:30,543 INFO L93 Difference]: Finished difference Result 2411 states and 3399 transitions. [2021-11-19 14:02:30,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:02:30,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (42), 5 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 243 [2021-11-19 14:02:30,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:30,550 INFO L225 Difference]: With dead ends: 2411 [2021-11-19 14:02:30,550 INFO L226 Difference]: Without dead ends: 2409 [2021-11-19 14:02:30,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2021-11-19 14:02:30,552 INFO L933 BasicCegarLoop]: 3268 mSDtfsCounter, 1991 mSDsluCounter, 15154 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 421 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 18422 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:30,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1994 Valid, 18422 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 14:02:30,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2021-11-19 14:02:30,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2399. [2021-11-19 14:02:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 1592 states have (on average 1.289572864321608) internal successors, (2053), 1691 states have internal predecessors, (2053), 642 states have call successors, (642), 158 states have call predecessors, (642), 159 states have return successors, (696), 584 states have call predecessors, (696), 642 states have call successors, (696) [2021-11-19 14:02:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3391 transitions. [2021-11-19 14:02:30,957 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3391 transitions. Word has length 243 [2021-11-19 14:02:30,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:30,958 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 3391 transitions. [2021-11-19 14:02:30,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (42), 5 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 14:02:30,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3391 transitions. [2021-11-19 14:02:30,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-19 14:02:30,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:30,964 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:30,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:31,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2021-11-19 14:02:31,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:02:31,386 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:02:31,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:31,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1399201342, now seen corresponding path program 1 times [2021-11-19 14:02:31,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:31,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730718735] [2021-11-19 14:02:31,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:31,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:31,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:31,389 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:31,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 14:02:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:32,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:02:32,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:34,069 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-19 14:02:34,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:35,489 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-19 14:02:35,489 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:35,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730718735] [2021-11-19 14:02:35,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730718735] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:02:35,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1365497282] [2021-11-19 14:02:35,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:35,490 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:02:35,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:02:35,491 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:02:35,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2021-11-19 14:02:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:38,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 14:02:38,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-11-19 14:02:40,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:41,284 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2021-11-19 14:02:41,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1365497282] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:41,284 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:02:41,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [17, 17] total 29 [2021-11-19 14:02:41,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830601858] [2021-11-19 14:02:41,285 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:41,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 14:02:41,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:41,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 14:02:41,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=753, Unknown=0, NotChecked=0, Total=812 [2021-11-19 14:02:41,287 INFO L87 Difference]: Start difference. First operand 2399 states and 3391 transitions. Second operand has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 16 states have internal predecessors, (128), 7 states have call successors, (46), 2 states have call predecessors, (46), 6 states have return successors, (44), 8 states have call predecessors, (44), 7 states have call successors, (44) [2021-11-19 14:02:44,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:44,104 INFO L93 Difference]: Finished difference Result 4365 states and 6182 transitions. [2021-11-19 14:02:44,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-19 14:02:44,104 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 16 states have internal predecessors, (128), 7 states have call successors, (46), 2 states have call predecessors, (46), 6 states have return successors, (44), 8 states have call predecessors, (44), 7 states have call successors, (44) Word has length 297 [2021-11-19 14:02:44,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:44,110 INFO L225 Difference]: With dead ends: 4365 [2021-11-19 14:02:44,110 INFO L226 Difference]: Without dead ends: 2444 [2021-11-19 14:02:44,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 1159 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=129, Invalid=1511, Unknown=0, NotChecked=0, Total=1640 [2021-11-19 14:02:44,115 INFO L933 BasicCegarLoop]: 2674 mSDtfsCounter, 41 mSDsluCounter, 39963 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 42637 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:44,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 42637 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-19 14:02:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2021-11-19 14:02:44,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2403. [2021-11-19 14:02:44,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 1594 states have (on average 1.2892095357590967) internal successors, (2055), 1693 states have internal predecessors, (2055), 644 states have call successors, (644), 158 states have call predecessors, (644), 159 states have return successors, (698), 586 states have call predecessors, (698), 644 states have call successors, (698) [2021-11-19 14:02:44,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 3397 transitions. [2021-11-19 14:02:44,393 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 3397 transitions. Word has length 297 [2021-11-19 14:02:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:44,394 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 3397 transitions. [2021-11-19 14:02:44,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 16 states have internal predecessors, (128), 7 states have call successors, (46), 2 states have call predecessors, (46), 6 states have return successors, (44), 8 states have call predecessors, (44), 7 states have call successors, (44) [2021-11-19 14:02:44,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 3397 transitions. [2021-11-19 14:02:44,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-19 14:02:44,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:44,397 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:44,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:44,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2021-11-19 14:02:44,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:02:44,814 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:02:44,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1975491392, now seen corresponding path program 1 times [2021-11-19 14:02:44,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:44,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424263746] [2021-11-19 14:02:44,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:44,815 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:44,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:44,816 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:44,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-19 14:02:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:46,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:02:46,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-11-19 14:02:46,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:47,708 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-11-19 14:02:47,708 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:47,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424263746] [2021-11-19 14:02:47,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424263746] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:47,708 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:47,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 14:02:47,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215460233] [2021-11-19 14:02:47,709 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:47,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:02:47,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:47,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:02:47,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:02:47,710 INFO L87 Difference]: Start difference. First operand 2403 states and 3397 transitions. Second operand has 10 states, 10 states have (on average 18.7) internal successors, (187), 8 states have internal predecessors, (187), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (61), 4 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-19 14:02:48,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:48,250 INFO L93 Difference]: Finished difference Result 4792 states and 6799 transitions. [2021-11-19 14:02:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:02:48,251 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.7) internal successors, (187), 8 states have internal predecessors, (187), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (61), 4 states have call predecessors, (61), 2 states have call successors, (61) Word has length 278 [2021-11-19 14:02:48,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:48,257 INFO L225 Difference]: With dead ends: 4792 [2021-11-19 14:02:48,257 INFO L226 Difference]: Without dead ends: 2414 [2021-11-19 14:02:48,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:02:48,265 INFO L933 BasicCegarLoop]: 2684 mSDtfsCounter, 13 mSDsluCounter, 16083 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18767 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:48,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 18767 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:02:48,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2021-11-19 14:02:48,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2408. [2021-11-19 14:02:48,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 1598 states have (on average 1.288485607008761) internal successors, (2059), 1697 states have internal predecessors, (2059), 644 states have call successors, (644), 158 states have call predecessors, (644), 160 states have return successors, (700), 587 states have call predecessors, (700), 644 states have call successors, (700) [2021-11-19 14:02:48,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3403 transitions. [2021-11-19 14:02:48,676 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3403 transitions. Word has length 278 [2021-11-19 14:02:48,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:48,676 INFO L470 AbstractCegarLoop]: Abstraction has 2408 states and 3403 transitions. [2021-11-19 14:02:48,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.7) internal successors, (187), 8 states have internal predecessors, (187), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (61), 4 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-19 14:02:48,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3403 transitions. [2021-11-19 14:02:48,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-11-19 14:02:48,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:48,680 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:48,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:48,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:48,901 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:02:48,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:48,902 INFO L85 PathProgramCache]: Analyzing trace with hash -45583638, now seen corresponding path program 1 times [2021-11-19 14:02:48,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:48,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740796512] [2021-11-19 14:02:48,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:48,904 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:48,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:48,904 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:48,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 14:02:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:50,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:02:50,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-19 14:02:50,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:51,576 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-19 14:02:51,576 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:51,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740796512] [2021-11-19 14:02:51,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740796512] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:51,577 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:51,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:02:51,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71311010] [2021-11-19 14:02:51,577 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:51,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:02:51,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:51,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:02:51,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:51,578 INFO L87 Difference]: Start difference. First operand 2408 states and 3403 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 4 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-19 14:02:52,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:52,335 INFO L93 Difference]: Finished difference Result 4803 states and 6813 transitions. [2021-11-19 14:02:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:02:52,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 4 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) Word has length 294 [2021-11-19 14:02:52,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:52,342 INFO L225 Difference]: With dead ends: 4803 [2021-11-19 14:02:52,342 INFO L226 Difference]: Without dead ends: 2420 [2021-11-19 14:02:52,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:02:52,350 INFO L933 BasicCegarLoop]: 2683 mSDtfsCounter, 15 mSDsluCounter, 8021 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 10704 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:52,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 10704 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:02:52,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2021-11-19 14:02:52,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2420. [2021-11-19 14:02:52,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1606 states have (on average 1.2870485678704857) internal successors, (2067), 1704 states have internal predecessors, (2067), 648 states have call successors, (648), 158 states have call predecessors, (648), 160 states have return successors, (704), 591 states have call predecessors, (704), 648 states have call successors, (704) [2021-11-19 14:02:52,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3419 transitions. [2021-11-19 14:02:52,619 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3419 transitions. Word has length 294 [2021-11-19 14:02:52,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:52,619 INFO L470 AbstractCegarLoop]: Abstraction has 2420 states and 3419 transitions. [2021-11-19 14:02:52,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 4 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-19 14:02:52,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3419 transitions. [2021-11-19 14:02:52,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-19 14:02:52,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:52,622 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:52,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:52,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:52,823 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:02:52,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:52,823 INFO L85 PathProgramCache]: Analyzing trace with hash -973045028, now seen corresponding path program 1 times [2021-11-19 14:02:52,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:52,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031286062] [2021-11-19 14:02:52,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:52,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:52,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:52,827 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:52,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-19 14:02:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:54,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:02:54,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 37 proven. 14 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-11-19 14:02:55,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-19 14:02:56,278 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:56,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031286062] [2021-11-19 14:02:56,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031286062] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:02:56,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1949161917] [2021-11-19 14:02:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:56,278 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:02:56,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:02:56,281 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:02:56,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2021-11-19 14:02:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:57,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:02:57,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-19 14:02:58,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-19 14:02:58,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1949161917] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:58,587 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:02:58,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 13 [2021-11-19 14:02:58,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173523655] [2021-11-19 14:02:58,588 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:58,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:58,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:58,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:58,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:02:58,589 INFO L87 Difference]: Start difference. First operand 2420 states and 3419 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2021-11-19 14:02:58,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:58,994 INFO L93 Difference]: Finished difference Result 4829 states and 6994 transitions. [2021-11-19 14:02:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:02:58,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 338 [2021-11-19 14:02:58,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:59,001 INFO L225 Difference]: With dead ends: 4829 [2021-11-19 14:02:59,001 INFO L226 Difference]: Without dead ends: 2434 [2021-11-19 14:02:59,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1350 GetRequests, 1337 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:02:59,008 INFO L933 BasicCegarLoop]: 2679 mSDtfsCounter, 10 mSDsluCounter, 8034 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10713 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:59,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 10713 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:02:59,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2021-11-19 14:02:59,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2428. [2021-11-19 14:02:59,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1613 states have (on average 1.2858028518288902) internal successors, (2074), 1712 states have internal predecessors, (2074), 648 states have call successors, (648), 158 states have call predecessors, (648), 161 states have return successors, (705), 591 states have call predecessors, (705), 648 states have call successors, (705) [2021-11-19 14:02:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3427 transitions. [2021-11-19 14:02:59,316 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3427 transitions. Word has length 338 [2021-11-19 14:02:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:59,317 INFO L470 AbstractCegarLoop]: Abstraction has 2428 states and 3427 transitions. [2021-11-19 14:02:59,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2021-11-19 14:02:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3427 transitions. [2021-11-19 14:02:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-19 14:02:59,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:59,321 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:59,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:59,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-11-19 14:02:59,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:59,734 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:02:59,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:59,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1994113382, now seen corresponding path program 1 times [2021-11-19 14:02:59,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:59,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122431928] [2021-11-19 14:02:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:59,736 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:59,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:59,737 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:59,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 14:03:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:01,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:01,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 37 proven. 14 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-11-19 14:03:02,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-19 14:03:03,022 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:03,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122431928] [2021-11-19 14:03:03,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122431928] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:03,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1387990520] [2021-11-19 14:03:03,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:03,023 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:03,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:03:03,024 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:03:03,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2021-11-19 14:03:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:04,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:03:04,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-19 14:03:04,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-19 14:03:05,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1387990520] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:05,863 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:03:05,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [6, 6] total 20 [2021-11-19 14:03:05,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002871866] [2021-11-19 14:03:05,864 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:05,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:03:05,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:05,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:03:05,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:03:05,865 INFO L87 Difference]: Start difference. First operand 2428 states and 3427 transitions. Second operand has 12 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 6 states have call successors, (60), 8 states have call predecessors, (60), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-19 14:03:08,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:08,559 INFO L93 Difference]: Finished difference Result 4871 states and 7003 transitions. [2021-11-19 14:03:08,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 14:03:08,560 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 6 states have call successors, (60), 8 states have call predecessors, (60), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 338 [2021-11-19 14:03:08,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:08,566 INFO L225 Difference]: With dead ends: 4871 [2021-11-19 14:03:08,566 INFO L226 Difference]: Without dead ends: 2468 [2021-11-19 14:03:08,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1352 GetRequests, 1330 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:03:08,572 INFO L933 BasicCegarLoop]: 2673 mSDtfsCounter, 93 mSDsluCounter, 18645 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 21318 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:08,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 21318 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:03:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2021-11-19 14:03:08,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2466. [2021-11-19 14:03:08,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 1649 states have (on average 1.2771376591873862) internal successors, (2106), 1743 states have internal predecessors, (2106), 647 states have call successors, (647), 162 states have call predecessors, (647), 164 states have return successors, (682), 594 states have call predecessors, (682), 647 states have call successors, (682) [2021-11-19 14:03:08,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3435 transitions. [2021-11-19 14:03:08,835 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3435 transitions. Word has length 338 [2021-11-19 14:03:08,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:08,836 INFO L470 AbstractCegarLoop]: Abstraction has 2466 states and 3435 transitions. [2021-11-19 14:03:08,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 6 states have call successors, (60), 8 states have call predecessors, (60), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-19 14:03:08,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3435 transitions. [2021-11-19 14:03:08,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-11-19 14:03:08,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:08,844 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:08,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:09,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:09,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:09,270 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:03:09,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:09,270 INFO L85 PathProgramCache]: Analyzing trace with hash 898808683, now seen corresponding path program 1 times [2021-11-19 14:03:09,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:09,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782875465] [2021-11-19 14:03:09,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:09,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:09,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:09,273 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:09,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-19 14:03:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:11,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 2023 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:11,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 241 proven. 14 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-19 14:03:12,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2021-11-19 14:03:13,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:13,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782875465] [2021-11-19 14:03:13,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782875465] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:13,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1802363641] [2021-11-19 14:03:13,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:13,258 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:13,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:03:13,259 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:03:13,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2021-11-19 14:03:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:16,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 2023 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:16,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 241 proven. 14 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-19 14:03:17,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:18,255 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2021-11-19 14:03:18,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1802363641] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:18,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548738493] [2021-11-19 14:03:18,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:18,256 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:03:18,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:03:18,257 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:03:18,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-11-19 14:03:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:19,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 2023 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 14:03:19,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:22,667 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-19 14:03:22,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-11-19 14:03:25,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548738493] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:03:25,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:03:25,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 6, 6, 6, 7] total 20 [2021-11-19 14:03:25,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808746501] [2021-11-19 14:03:25,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:25,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:03:25,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:25,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:03:25,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:03:25,603 INFO L87 Difference]: Start difference. First operand 2466 states and 3435 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 4 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2021-11-19 14:03:29,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:29,573 INFO L93 Difference]: Finished difference Result 2898 states and 3951 transitions. [2021-11-19 14:03:29,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:03:29,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 4 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) Word has length 427 [2021-11-19 14:03:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:29,584 INFO L225 Difference]: With dead ends: 2898 [2021-11-19 14:03:29,584 INFO L226 Difference]: Without dead ends: 2896 [2021-11-19 14:03:29,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2560 GetRequests, 2538 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:03:29,587 INFO L933 BasicCegarLoop]: 2789 mSDtfsCounter, 2832 mSDsluCounter, 5893 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 8682 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:29,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2885 Valid, 8682 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-19 14:03:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-11-19 14:03:29,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 2888. [2021-11-19 14:03:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 1927 states have (on average 1.2589517384535547) internal successors, (2426), 2037 states have internal predecessors, (2426), 736 states have call successors, (736), 220 states have call predecessors, (736), 219 states have return successors, (780), 673 states have call predecessors, (780), 736 states have call successors, (780) [2021-11-19 14:03:29,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3942 transitions. [2021-11-19 14:03:29,969 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3942 transitions. Word has length 427 [2021-11-19 14:03:29,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:29,970 INFO L470 AbstractCegarLoop]: Abstraction has 2888 states and 3942 transitions. [2021-11-19 14:03:29,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 4 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2021-11-19 14:03:29,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3942 transitions. [2021-11-19 14:03:29,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-11-19 14:03:29,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:29,975 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:30,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:30,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2021-11-19 14:03:30,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2021-11-19 14:03:30,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:03:30,576 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:03:30,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1099488344, now seen corresponding path program 1 times [2021-11-19 14:03:30,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:30,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979714261] [2021-11-19 14:03:30,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:30,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:30,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:30,580 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:30,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-19 14:03:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:32,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 2045 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:32,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 245 proven. 14 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2021-11-19 14:03:33,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:34,624 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2021-11-19 14:03:34,625 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:34,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979714261] [2021-11-19 14:03:34,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979714261] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:34,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1507556325] [2021-11-19 14:03:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:34,625 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:34,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:03:34,626 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:03:34,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2021-11-19 14:03:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:35,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 2045 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:03:35,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-19 14:03:36,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-19 14:03:37,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1507556325] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:37,698 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:03:37,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [6, 6] total 17 [2021-11-19 14:03:37,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758063353] [2021-11-19 14:03:37,699 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:37,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:03:37,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:37,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:03:37,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:03:37,700 INFO L87 Difference]: Start difference. First operand 2888 states and 3942 transitions. Second operand has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 7 states have internal predecessors, (204), 4 states have call successors, (68), 6 states have call predecessors, (68), 4 states have return successors, (64), 4 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:03:39,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:03:41,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:03:43,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:43,118 INFO L93 Difference]: Finished difference Result 2894 states and 3946 transitions. [2021-11-19 14:03:43,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:03:43,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 7 states have internal predecessors, (204), 4 states have call successors, (68), 6 states have call predecessors, (68), 4 states have return successors, (64), 4 states have call predecessors, (64), 2 states have call successors, (64) Word has length 439 [2021-11-19 14:03:43,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:43,126 INFO L225 Difference]: With dead ends: 2894 [2021-11-19 14:03:43,126 INFO L226 Difference]: Without dead ends: 2892 [2021-11-19 14:03:43,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1761 GetRequests, 1738 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:03:43,128 INFO L933 BasicCegarLoop]: 2932 mSDtfsCounter, 767 mSDsluCounter, 14257 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 186 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 17189 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:43,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 17189 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 45 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2021-11-19 14:03:43,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2021-11-19 14:03:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2888. [2021-11-19 14:03:43,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 1927 states have (on average 1.257913855734302) internal successors, (2424), 2037 states have internal predecessors, (2424), 736 states have call successors, (736), 220 states have call predecessors, (736), 219 states have return successors, (780), 673 states have call predecessors, (780), 736 states have call successors, (780) [2021-11-19 14:03:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3940 transitions. [2021-11-19 14:03:43,512 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3940 transitions. Word has length 439 [2021-11-19 14:03:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:43,512 INFO L470 AbstractCegarLoop]: Abstraction has 2888 states and 3940 transitions. [2021-11-19 14:03:43,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 7 states have internal predecessors, (204), 4 states have call successors, (68), 6 states have call predecessors, (68), 4 states have return successors, (64), 4 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:03:43,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3940 transitions. [2021-11-19 14:03:43,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-11-19 14:03:43,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:43,518 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:43,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (53)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:43,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Ended with exit code 0 [2021-11-19 14:03:43,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:43,919 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:03:43,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:43,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2020953767, now seen corresponding path program 1 times [2021-11-19 14:03:43,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:43,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529874681] [2021-11-19 14:03:43,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:43,921 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:43,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:43,922 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:43,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-19 14:03:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:45,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 2187 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:45,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:47,143 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 135 proven. 14 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 14:03:47,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:48,708 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2021-11-19 14:03:48,708 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:48,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529874681] [2021-11-19 14:03:48,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529874681] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:48,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1889089729] [2021-11-19 14:03:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:48,709 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:48,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:03:48,710 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:03:48,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2021-11-19 14:03:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:50,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 2187 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:03:50,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-19 14:03:51,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:52,201 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-19 14:03:52,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1889089729] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:52,202 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:03:52,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [6, 6] total 20 [2021-11-19 14:03:52,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711825170] [2021-11-19 14:03:52,202 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:52,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:03:52,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:52,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:03:52,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:03:52,204 INFO L87 Difference]: Start difference. First operand 2888 states and 3940 transitions. Second operand has 12 states, 10 states have (on average 21.3) internal successors, (213), 8 states have internal predecessors, (213), 6 states have call successors, (75), 8 states have call predecessors, (75), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-19 14:03:54,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:54,984 INFO L93 Difference]: Finished difference Result 5815 states and 8062 transitions. [2021-11-19 14:03:54,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:03:54,985 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 21.3) internal successors, (213), 8 states have internal predecessors, (213), 6 states have call successors, (75), 8 states have call predecessors, (75), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 448 [2021-11-19 14:03:54,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:55,002 INFO L225 Difference]: With dead ends: 5815 [2021-11-19 14:03:55,002 INFO L226 Difference]: Without dead ends: 2952 [2021-11-19 14:03:55,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1793 GetRequests, 1770 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:03:55,010 INFO L933 BasicCegarLoop]: 2705 mSDtfsCounter, 77 mSDsluCounter, 21485 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 24190 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:55,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 24190 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 14:03:55,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-11-19 14:03:55,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2939. [2021-11-19 14:03:55,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 1972 states have (on average 1.2489858012170385) internal successors, (2463), 2079 states have internal predecessors, (2463), 739 states have call successors, (739), 222 states have call predecessors, (739), 222 states have return successors, (793), 685 states have call predecessors, (793), 739 states have call successors, (793) [2021-11-19 14:03:55,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 3995 transitions. [2021-11-19 14:03:55,359 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 3995 transitions. Word has length 448 [2021-11-19 14:03:55,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:55,360 INFO L470 AbstractCegarLoop]: Abstraction has 2939 states and 3995 transitions. [2021-11-19 14:03:55,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 21.3) internal successors, (213), 8 states have internal predecessors, (213), 6 states have call successors, (75), 8 states have call predecessors, (75), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-19 14:03:55,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 3995 transitions. [2021-11-19 14:03:55,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-11-19 14:03:55,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:55,371 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:55,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:55,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:55,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:55,785 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:03:55,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:55,786 INFO L85 PathProgramCache]: Analyzing trace with hash -516283800, now seen corresponding path program 1 times [2021-11-19 14:03:55,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:55,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772517304] [2021-11-19 14:03:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:55,788 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:55,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:55,789 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:55,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-19 14:03:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:57,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:03:57,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2021-11-19 14:03:59,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2021-11-19 14:04:01,056 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:01,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772517304] [2021-11-19 14:04:01,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772517304] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:01,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [126750054] [2021-11-19 14:04:01,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:01,057 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:01,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:01,058 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:01,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2021-11-19 14:04:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:02,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:04:02,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2021-11-19 14:04:03,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2021-11-19 14:04:04,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [126750054] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:04,622 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:04:04,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [17, 17] total 21 [2021-11-19 14:04:04,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35989352] [2021-11-19 14:04:04,623 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:04,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:04:04,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:04,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:04:04,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:04:04,625 INFO L87 Difference]: Start difference. First operand 2939 states and 3995 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2021-11-19 14:04:05,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:05,112 INFO L93 Difference]: Finished difference Result 5854 states and 7983 transitions. [2021-11-19 14:04:05,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:04:05,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 471 [2021-11-19 14:04:05,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:05,124 INFO L225 Difference]: With dead ends: 5854 [2021-11-19 14:04:05,124 INFO L226 Difference]: Without dead ends: 2940 [2021-11-19 14:04:05,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1880 GetRequests, 1861 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:04:05,133 INFO L933 BasicCegarLoop]: 2681 mSDtfsCounter, 0 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:05,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5357 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:04:05,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-11-19 14:04:05,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2021-11-19 14:04:05,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 1973 states have (on average 1.2488596046629499) internal successors, (2464), 2080 states have internal predecessors, (2464), 739 states have call successors, (739), 222 states have call predecessors, (739), 222 states have return successors, (793), 685 states have call predecessors, (793), 739 states have call successors, (793) [2021-11-19 14:04:05,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 3996 transitions. [2021-11-19 14:04:05,496 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 3996 transitions. Word has length 471 [2021-11-19 14:04:05,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:05,496 INFO L470 AbstractCegarLoop]: Abstraction has 2940 states and 3996 transitions. [2021-11-19 14:04:05,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2021-11-19 14:04:05,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 3996 transitions. [2021-11-19 14:04:05,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-11-19 14:04:05,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:05,503 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:05,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:05,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:05,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:05,904 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:04:05,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:05,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1378050086, now seen corresponding path program 1 times [2021-11-19 14:04:05,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:05,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401962949] [2021-11-19 14:04:05,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:05,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:05,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:05,908 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:05,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-11-19 14:04:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:07,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 2068 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:04:07,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:09,822 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2021-11-19 14:04:09,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2021-11-19 14:04:11,363 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:11,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401962949] [2021-11-19 14:04:11,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401962949] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:11,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1141788407] [2021-11-19 14:04:11,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:11,364 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:11,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:11,365 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:11,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2021-11-19 14:04:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:12,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 2068 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:12,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2021-11-19 14:04:13,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:14,594 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2021-11-19 14:04:14,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1141788407] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:14,594 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:04:14,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [17, 17] total 22 [2021-11-19 14:04:14,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731675914] [2021-11-19 14:04:14,595 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:14,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:04:14,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:14,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:04:14,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:04:14,597 INFO L87 Difference]: Start difference. First operand 2940 states and 3996 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2021-11-19 14:04:15,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:15,498 INFO L93 Difference]: Finished difference Result 5877 states and 8014 transitions. [2021-11-19 14:04:15,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:04:15,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 471 [2021-11-19 14:04:15,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:15,509 INFO L225 Difference]: With dead ends: 5877 [2021-11-19 14:04:15,509 INFO L226 Difference]: Without dead ends: 2962 [2021-11-19 14:04:15,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1881 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:04:15,517 INFO L933 BasicCegarLoop]: 2700 mSDtfsCounter, 15 mSDsluCounter, 5282 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7982 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:15,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 7982 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:04:15,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-11-19 14:04:15,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 2942. [2021-11-19 14:04:15,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 1975 states have (on average 1.2486075949367088) internal successors, (2466), 2082 states have internal predecessors, (2466), 739 states have call successors, (739), 222 states have call predecessors, (739), 222 states have return successors, (793), 685 states have call predecessors, (793), 739 states have call successors, (793) [2021-11-19 14:04:15,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 3998 transitions. [2021-11-19 14:04:15,847 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 3998 transitions. Word has length 471 [2021-11-19 14:04:15,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:15,848 INFO L470 AbstractCegarLoop]: Abstraction has 2942 states and 3998 transitions. [2021-11-19 14:04:15,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2021-11-19 14:04:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 3998 transitions. [2021-11-19 14:04:15,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-11-19 14:04:15,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:15,856 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:15,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (59)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:16,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:16,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:16,257 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:04:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:16,257 INFO L85 PathProgramCache]: Analyzing trace with hash 969073203, now seen corresponding path program 1 times [2021-11-19 14:04:16,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:16,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260036839] [2021-11-19 14:04:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:16,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:16,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:16,260 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:16,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-11-19 14:04:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:18,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 2206 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:04:18,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:19,295 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 247 proven. 14 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-19 14:04:19,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-19 14:04:20,535 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:20,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260036839] [2021-11-19 14:04:20,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260036839] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:20,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [21011275] [2021-11-19 14:04:20,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:20,536 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:20,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:20,537 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:20,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2021-11-19 14:04:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:21,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 2206 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:21,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:22,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-11-19 14:04:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-19 14:04:22,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:23,725 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-19 14:04:23,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [21011275] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:23,725 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:04:23,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 14 [2021-11-19 14:04:23,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870898644] [2021-11-19 14:04:23,726 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:23,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:04:23,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:23,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:04:23,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:04:23,727 INFO L87 Difference]: Start difference. First operand 2942 states and 3998 transitions. Second operand has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-19 14:04:25,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:27,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:30,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:35,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:37,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:51,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:53,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:55,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:57,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:58,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:01,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:03,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:05,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:07,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:09,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:11,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:13,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:15,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:17,186 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:18,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:20,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:22,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:24,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:25,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:28,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:30,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:32,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:34,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:36,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:40,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:42,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:44,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:46,093 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 [] [2021-11-19 14:05:46,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:46,096 INFO L93 Difference]: Finished difference Result 5831 states and 8039 transitions. [2021-11-19 14:05:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:05:46,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 472 [2021-11-19 14:05:46,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:46,131 INFO L225 Difference]: With dead ends: 5831 [2021-11-19 14:05:46,131 INFO L226 Difference]: Without dead ends: 2914 [2021-11-19 14:05:46,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1885 GetRequests, 1872 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:05:46,222 INFO L933 BasicCegarLoop]: 2646 mSDtfsCounter, 33 mSDsluCounter, 7327 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 8 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 9973 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:46,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 9973 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 619 Invalid, 25 Unknown, 0 Unchecked, 81.9s Time] [2021-11-19 14:05:46,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-11-19 14:05:46,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2914. [2021-11-19 14:05:46,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 1959 states have (on average 1.2475752935171005) internal successors, (2444), 2062 states have internal predecessors, (2444), 729 states have call successors, (729), 220 states have call predecessors, (729), 220 states have return successors, (781), 679 states have call predecessors, (781), 729 states have call successors, (781) [2021-11-19 14:05:46,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3954 transitions. [2021-11-19 14:05:46,637 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3954 transitions. Word has length 472 [2021-11-19 14:05:46,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:46,638 INFO L470 AbstractCegarLoop]: Abstraction has 2914 states and 3954 transitions. [2021-11-19 14:05:46,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-19 14:05:46,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3954 transitions. [2021-11-19 14:05:46,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-11-19 14:05:46,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:46,648 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:46,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (61)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:46,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:47,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:47,049 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:05:47,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:47,050 INFO L85 PathProgramCache]: Analyzing trace with hash -50691563, now seen corresponding path program 1 times [2021-11-19 14:05:47,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:47,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595655842] [2021-11-19 14:05:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:47,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:47,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:47,053 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:47,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-11-19 14:05:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:49,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 2204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:05:49,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:50,616 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 247 proven. 14 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-19 14:05:50,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-19 14:05:52,066 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:52,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595655842] [2021-11-19 14:05:52,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595655842] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:05:52,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1205906727] [2021-11-19 14:05:52,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:52,066 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:05:52,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:05:52,067 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:05:52,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2021-11-19 14:05:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:53,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 2204 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:53,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:54,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-11-19 14:05:54,750 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-19 14:05:54,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:55,998 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-19 14:05:55,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1205906727] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:55,999 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:05:55,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 16 [2021-11-19 14:05:55,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815873914] [2021-11-19 14:05:55,999 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:56,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:05:56,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:56,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:05:56,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:05:56,001 INFO L87 Difference]: Start difference. First operand 2914 states and 3954 transitions. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-19 14:05:58,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:00,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:03,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:05,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:09,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:13,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:18,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:20,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:23,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:25,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:27,150 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:29,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:31,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:33,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:35,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:37,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:39,477 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:43,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:45,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:45,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:45,127 INFO L93 Difference]: Finished difference Result 5747 states and 7889 transitions. [2021-11-19 14:06:45,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:06:45,154 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 472 [2021-11-19 14:06:45,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:45,163 INFO L225 Difference]: With dead ends: 5747 [2021-11-19 14:06:45,163 INFO L226 Difference]: Without dead ends: 2858 [2021-11-19 14:06:45,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1885 GetRequests, 1870 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:06:45,175 INFO L933 BasicCegarLoop]: 2606 mSDtfsCounter, 24 mSDsluCounter, 4917 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 7 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 7523 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:45,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 7523 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 308 Invalid, 17 Unknown, 0 Unchecked, 48.6s Time] [2021-11-19 14:06:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2021-11-19 14:06:45,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2858. [2021-11-19 14:06:45,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2858 states, 1927 states have (on average 1.2444213803840165) internal successors, (2398), 2022 states have internal predecessors, (2398), 707 states have call successors, (707), 218 states have call predecessors, (707), 218 states have return successors, (755), 665 states have call predecessors, (755), 707 states have call successors, (755) [2021-11-19 14:06:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 3860 transitions. [2021-11-19 14:06:45,641 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 3860 transitions. Word has length 472 [2021-11-19 14:06:45,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:45,642 INFO L470 AbstractCegarLoop]: Abstraction has 2858 states and 3860 transitions. [2021-11-19 14:06:45,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-19 14:06:45,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 3860 transitions. [2021-11-19 14:06:45,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-11-19 14:06:45,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:45,653 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:45,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:45,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:46,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:06:46,054 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:06:46,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:46,055 INFO L85 PathProgramCache]: Analyzing trace with hash 998170514, now seen corresponding path program 1 times [2021-11-19 14:06:46,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:46,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788764817] [2021-11-19 14:06:46,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:46,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:46,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:46,058 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:46,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-11-19 14:06:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:48,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 2205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:06:48,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:49,696 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 247 proven. 14 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-19 14:06:49,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-19 14:06:51,215 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:51,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788764817] [2021-11-19 14:06:51,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788764817] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:51,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [930434622] [2021-11-19 14:06:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:51,216 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:06:51,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:06:51,217 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:06:51,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2021-11-19 14:06:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:55,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 2205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:06:55,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 247 proven. 14 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-11-19 14:06:56,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:57,965 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-19 14:06:57,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [930434622] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:57,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099556349] [2021-11-19 14:06:57,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:57,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:06:57,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:06:57,967 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:06:57,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-19 14:06:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:59,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 2205 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:06:59,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-19 14:07:03,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-19 14:07:07,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099556349] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:07:07,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:07:07,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 6, 6, 6, 7] total 20 [2021-11-19 14:07:07,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329989711] [2021-11-19 14:07:07,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:07,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:07:07,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:07,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:07:07,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:07:07,373 INFO L87 Difference]: Start difference. First operand 2858 states and 3860 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 4 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-19 14:07:11,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:11,145 INFO L93 Difference]: Finished difference Result 2985 states and 3984 transitions. [2021-11-19 14:07:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:07:11,146 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 4 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) Word has length 472 [2021-11-19 14:07:11,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:11,154 INFO L225 Difference]: With dead ends: 2985 [2021-11-19 14:07:11,154 INFO L226 Difference]: Without dead ends: 2983 [2021-11-19 14:07:11,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2828 GetRequests, 2808 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:07:11,156 INFO L933 BasicCegarLoop]: 2607 mSDtfsCounter, 2260 mSDsluCounter, 6035 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 8642 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:11,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2282 Valid, 8642 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-19 14:07:11,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-11-19 14:07:11,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2977. [2021-11-19 14:07:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2977 states, 2007 states have (on average 1.238166417538615) internal successors, (2485), 2103 states have internal predecessors, (2485), 722 states have call successors, (722), 243 states have call predecessors, (722), 243 states have return successors, (770), 680 states have call predecessors, (770), 722 states have call successors, (770) [2021-11-19 14:07:11,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2977 states to 2977 states and 3977 transitions. [2021-11-19 14:07:11,885 INFO L78 Accepts]: Start accepts. Automaton has 2977 states and 3977 transitions. Word has length 472 [2021-11-19 14:07:11,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:11,886 INFO L470 AbstractCegarLoop]: Abstraction has 2977 states and 3977 transitions. [2021-11-19 14:07:11,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 4 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-19 14:07:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2977 states and 3977 transitions. [2021-11-19 14:07:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2021-11-19 14:07:11,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:11,896 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:11,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:12,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:12,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2021-11-19 14:07:12,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:12,497 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:07:12,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:12,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1102186589, now seen corresponding path program 1 times [2021-11-19 14:07:12,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:12,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493489080] [2021-11-19 14:07:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:12,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:12,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:12,501 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:12,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2021-11-19 14:07:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:14,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:07:14,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 279 proven. 14 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-11-19 14:07:16,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2021-11-19 14:07:17,931 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:17,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493489080] [2021-11-19 14:07:17,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493489080] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:07:17,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [727559061] [2021-11-19 14:07:17,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:17,931 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:17,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:07:17,937 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:07:17,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2021-11-19 14:07:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:21,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:07:21,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:23,385 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 279 proven. 14 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-11-19 14:07:23,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2021-11-19 14:07:24,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [727559061] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:07:24,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385360922] [2021-11-19 14:07:24,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:24,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:07:24,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:07:24,849 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:07:24,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-11-19 14:07:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:26,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:07:26,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 75 proven. 79 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-19 14:07:28,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:29,482 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2021-11-19 14:07:29,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385360922] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:07:29,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:07:29,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6, 6, 6, 6] total 16 [2021-11-19 14:07:29,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472274023] [2021-11-19 14:07:29,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:29,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:07:29,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:07:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:07:29,485 INFO L87 Difference]: Start difference. First operand 2977 states and 3977 transitions. Second operand has 5 states, 5 states have (on average 44.8) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (74), 3 states have call predecessors, (74), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2021-11-19 14:07:31,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:32,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:32,041 INFO L93 Difference]: Finished difference Result 2981 states and 3979 transitions. [2021-11-19 14:07:32,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:07:32,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (74), 3 states have call predecessors, (74), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 498 [2021-11-19 14:07:32,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:32,050 INFO L225 Difference]: With dead ends: 2981 [2021-11-19 14:07:32,050 INFO L226 Difference]: Without dead ends: 2979 [2021-11-19 14:07:32,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2984 GetRequests, 2968 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:07:32,052 INFO L933 BasicCegarLoop]: 2727 mSDtfsCounter, 549 mSDsluCounter, 7626 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 10353 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:32,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 10353 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:07:32,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2021-11-19 14:07:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2975. [2021-11-19 14:07:32,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2006 states have (on average 1.2372881355932204) internal successors, (2482), 2101 states have internal predecessors, (2482), 722 states have call successors, (722), 243 states have call predecessors, (722), 243 states have return successors, (770), 680 states have call predecessors, (770), 722 states have call successors, (770) [2021-11-19 14:07:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3974 transitions. [2021-11-19 14:07:32,472 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3974 transitions. Word has length 498 [2021-11-19 14:07:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:32,473 INFO L470 AbstractCegarLoop]: Abstraction has 2975 states and 3974 transitions. [2021-11-19 14:07:32,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (74), 3 states have call predecessors, (74), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2021-11-19 14:07:32,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3974 transitions. [2021-11-19 14:07:32,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-19 14:07:32,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:32,481 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:32,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:32,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2021-11-19 14:07:32,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (67)] Ended with exit code 0 [2021-11-19 14:07:33,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:33,084 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:07:33,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:33,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1673189196, now seen corresponding path program 1 times [2021-11-19 14:07:33,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:33,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502985147] [2021-11-19 14:07:33,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:33,086 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:33,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:33,087 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:33,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2021-11-19 14:07:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:34,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2175 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:07:34,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-19 14:07:37,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-11-19 14:07:38,806 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:38,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502985147] [2021-11-19 14:07:38,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502985147] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:07:38,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [779472662] [2021-11-19 14:07:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:38,807 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:38,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:07:38,819 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:07:38,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2021-11-19 14:07:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:40,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 2175 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:07:40,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:43,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2021-11-19 14:07:43,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2021-11-19 14:07:45,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [779472662] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:45,206 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:07:45,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [17, 17] total 25 [2021-11-19 14:07:45,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194026348] [2021-11-19 14:07:45,207 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:45,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:07:45,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:45,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:07:45,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:07:45,209 INFO L87 Difference]: Start difference. First operand 2975 states and 3974 transitions. Second operand has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 6 states have internal predecessors, (361), 2 states have call successors, (140), 2 states have call predecessors, (140), 4 states have return successors, (138), 3 states have call predecessors, (138), 2 states have call successors, (138) [2021-11-19 14:07:47,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:52,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:52,555 INFO L93 Difference]: Finished difference Result 4609 states and 6200 transitions. [2021-11-19 14:07:52,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:07:52,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 6 states have internal predecessors, (361), 2 states have call successors, (140), 2 states have call predecessors, (140), 4 states have return successors, (138), 3 states have call predecessors, (138), 2 states have call successors, (138) Word has length 502 [2021-11-19 14:07:52,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:52,566 INFO L225 Difference]: With dead ends: 4609 [2021-11-19 14:07:52,566 INFO L226 Difference]: Without dead ends: 2975 [2021-11-19 14:07:52,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2006 GetRequests, 1981 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=61, Invalid=641, Unknown=0, NotChecked=0, Total=702 [2021-11-19 14:07:52,571 INFO L933 BasicCegarLoop]: 2608 mSDtfsCounter, 2281 mSDsluCounter, 6819 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 9427 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:52,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 9427 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 997 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-19 14:07:52,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-11-19 14:07:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2975. [2021-11-19 14:07:52,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2006 states have (on average 1.2362911266201395) internal successors, (2480), 2101 states have internal predecessors, (2480), 722 states have call successors, (722), 243 states have call predecessors, (722), 243 states have return successors, (770), 680 states have call predecessors, (770), 722 states have call successors, (770) [2021-11-19 14:07:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3972 transitions. [2021-11-19 14:07:53,006 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3972 transitions. Word has length 502 [2021-11-19 14:07:53,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:53,007 INFO L470 AbstractCegarLoop]: Abstraction has 2975 states and 3972 transitions. [2021-11-19 14:07:53,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 6 states have internal predecessors, (361), 2 states have call successors, (140), 2 states have call predecessors, (140), 4 states have return successors, (138), 3 states have call predecessors, (138), 2 states have call successors, (138) [2021-11-19 14:07:53,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3972 transitions. [2021-11-19 14:07:53,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-19 14:07:53,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:53,020 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:53,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:53,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (71)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:53,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:53,437 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:07:53,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:53,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1673129614, now seen corresponding path program 1 times [2021-11-19 14:07:53,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:53,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689000616] [2021-11-19 14:07:53,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:53,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:53,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:53,441 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:53,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2021-11-19 14:07:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:54,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 2175 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:07:54,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:57,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-19 14:07:57,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-11-19 14:07:59,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:59,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689000616] [2021-11-19 14:07:59,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689000616] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:07:59,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1637131316] [2021-11-19 14:07:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:59,090 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:59,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:07:59,090 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:07:59,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2021-11-19 14:08:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:00,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 2175 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:08:00,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:01,102 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-19 14:08:01,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 21 [2021-11-19 14:08:14,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 835 trivial. 0 not checked. [2021-11-19 14:08:14,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2021-11-19 14:08:16,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1637131316] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:16,214 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:08:16,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [17, 17] total 26 [2021-11-19 14:08:16,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871314440] [2021-11-19 14:08:16,215 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:16,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:08:16,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:16,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:08:16,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=588, Unknown=4, NotChecked=0, Total=650 [2021-11-19 14:08:16,217 INFO L87 Difference]: Start difference. First operand 2975 states and 3972 transitions. Second operand has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 2 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2021-11-19 14:08:18,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:20,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:23,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:30,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:33,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:35,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:50,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:52,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:58,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:59,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:01,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:03,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:06,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:08,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:10,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:12,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:14,607 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:16,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:19,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:21,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:23,174 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:25,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:26,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:27,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:29,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:31,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:33,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:35,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:38,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:40,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:42,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:45,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:47,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:49,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:51,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:53,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:53,269 INFO L93 Difference]: Finished difference Result 6094 states and 8203 transitions. [2021-11-19 14:09:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:09:53,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 2 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 502 [2021-11-19 14:09:53,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:53,307 INFO L225 Difference]: With dead ends: 6094 [2021-11-19 14:09:53,308 INFO L226 Difference]: Without dead ends: 3144 [2021-11-19 14:09:53,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2008 GetRequests, 1980 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=88, Invalid=778, Unknown=4, NotChecked=0, Total=870 [2021-11-19 14:09:53,317 INFO L933 BasicCegarLoop]: 2779 mSDtfsCounter, 353 mSDsluCounter, 7456 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 50 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 10235 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 93.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:53,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 10235 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1085 Invalid, 29 Unknown, 2 Unchecked, 93.6s Time] [2021-11-19 14:09:53,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-11-19 14:09:53,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2977. [2021-11-19 14:09:53,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2977 states, 2008 states have (on average 1.2360557768924303) internal successors, (2482), 2103 states have internal predecessors, (2482), 722 states have call successors, (722), 243 states have call predecessors, (722), 243 states have return successors, (770), 680 states have call predecessors, (770), 722 states have call successors, (770) [2021-11-19 14:09:53,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2977 states to 2977 states and 3974 transitions. [2021-11-19 14:09:53,749 INFO L78 Accepts]: Start accepts. Automaton has 2977 states and 3974 transitions. Word has length 502 [2021-11-19 14:09:53,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:53,750 INFO L470 AbstractCegarLoop]: Abstraction has 2977 states and 3974 transitions. [2021-11-19 14:09:53,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 2 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2021-11-19 14:09:53,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2977 states and 3974 transitions. [2021-11-19 14:09:53,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-11-19 14:09:53,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:53,761 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:53,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (73)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:54,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (72)] Ended with exit code 0 [2021-11-19 14:09:54,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:54,162 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:09:54,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:54,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1005427233, now seen corresponding path program 1 times [2021-11-19 14:09:54,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:54,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291486455] [2021-11-19 14:09:54,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:54,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:54,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:54,168 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:54,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2021-11-19 14:09:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:56,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:09:56,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:58,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-19 14:09:58,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-11-19 14:10:00,987 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:00,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291486455] [2021-11-19 14:10:00,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291486455] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:10:00,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [662911766] [2021-11-19 14:10:00,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:00,988 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:10:00,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:10:00,989 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:10:00,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4882821b-4de8-4cae-a5ca-b34c43443a8e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (75)] Waiting until timeout for monitored process [2021-11-19 14:10:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:02,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:10:02,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:03,306 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-19 14:10:03,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 21 [2021-11-19 14:10:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 835 trivial. 0 not checked. [2021-11-19 14:10:22,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2021-11-19 14:10:26,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [662911766] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:10:26,167 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:10:26,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [17, 17] total 26 [2021-11-19 14:10:26,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618435147] [2021-11-19 14:10:26,168 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:26,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:10:26,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:10:26,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=586, Unknown=6, NotChecked=0, Total=650 [2021-11-19 14:10:26,170 INFO L87 Difference]: Start difference. First operand 2977 states and 3974 transitions. Second operand has 8 states, 8 states have (on average 30.625) internal successors, (245), 8 states have internal predecessors, (245), 2 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2021-11-19 14:10:28,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:37,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:40,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:54,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:56,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:01,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:03,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:07,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:09,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:11,588 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:13,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:15,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:17,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:19,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:21,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:23,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:24,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:26,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:28,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:31,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:33,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:35,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:37,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:39,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:11:39,733 INFO L93 Difference]: Finished difference Result 6101 states and 8210 transitions. [2021-11-19 14:11:39,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:11:39,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 30.625) internal successors, (245), 8 states have internal predecessors, (245), 2 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 503 [2021-11-19 14:11:39,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:11:39,745 INFO L225 Difference]: With dead ends: 6101 [2021-11-19 14:11:39,745 INFO L226 Difference]: Without dead ends: 3149 [2021-11-19 14:11:39,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2012 GetRequests, 1984 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=88, Invalid=776, Unknown=6, NotChecked=0, Total=870 [2021-11-19 14:11:39,752 INFO L933 BasicCegarLoop]: 2736 mSDtfsCounter, 554 mSDsluCounter, 9926 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 123 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 12662 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 134 IncrementalHoareTripleChecker+Unchecked, 70.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:11:39,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 12662 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1004 Invalid, 16 Unknown, 134 Unchecked, 70.4s Time] [2021-11-19 14:11:39,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states.