./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:41:16,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:41:16,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:41:16,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:41:16,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:41:16,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:41:16,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:41:16,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:41:16,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:41:16,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:41:16,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:41:16,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:41:16,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:41:16,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:41:16,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:41:16,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:41:16,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:41:16,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:41:16,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:41:16,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:41:16,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:41:16,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:41:16,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:41:16,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:41:16,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:41:16,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:41:16,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:41:16,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:41:16,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:41:16,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:41:16,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:41:16,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:41:16,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:41:16,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:41:16,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:41:16,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:41:16,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:41:16,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:41:16,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:41:16,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:41:16,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:41:16,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:41:16,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:41:16,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:41:16,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:41:16,761 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:41:16,761 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:41:16,762 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:41:16,762 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:41:16,762 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:41:16,763 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:41:16,763 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:41:16,764 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:41:16,765 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:41:16,765 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:41:16,765 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:41:16,766 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:41:16,766 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:41:16,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:41:16,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:41:16,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:41:16,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:41:16,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:41:16,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:41:16,769 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:41:16,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:41:16,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:41:16,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:41:16,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:41:16,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:41:16,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:16,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:41:16,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:41:16,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:41:16,774 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:41:16,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:41:16,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:41:16,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:41:16,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:41:16,797 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_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2021-11-13 02:41:17,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:41:17,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:41:17,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:41:17,283 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:41:17,284 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:41:17,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-13 02:41:17,362 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data/3b867011d/226bfbd42ee148b5bd41055b78da0ee0/FLAG97ab327fb [2021-11-13 02:41:18,488 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:41:18,489 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-13 02:41:18,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data/3b867011d/226bfbd42ee148b5bd41055b78da0ee0/FLAG97ab327fb [2021-11-13 02:41:18,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data/3b867011d/226bfbd42ee148b5bd41055b78da0ee0 [2021-11-13 02:41:18,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:41:18,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:41:18,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:18,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:41:18,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:41:18,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:18" (1/1) ... [2021-11-13 02:41:18,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43bf13fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:18, skipping insertion in model container [2021-11-13 02:41:18,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:18" (1/1) ... [2021-11-13 02:41:18,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:41:18,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:41:20,748 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:20,749 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,055 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,066 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,107 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,126 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,129 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,152 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,152 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,191 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,228 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,229 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,275 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,291 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,296 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,306 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,317 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,343 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,353 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,372 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,380 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,401 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,408 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,416 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,449 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,460 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,461 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,469 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,471 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,503 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,504 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,505 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,544 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:21,545 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,299 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,300 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,300 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,300 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,301 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,301 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,302 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,308 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,320 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,339 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,349 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,380 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,380 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,427 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,438 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,461 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,482 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,499 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,509 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,524 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,532 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,540 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,542 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,552 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,553 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,563 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,578 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,591 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,605 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,606 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,612 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,626 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,645 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,656 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,658 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,665 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,678 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,692 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,721 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,732 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:22,743 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:23,422 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-13 02:41:23,425 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-13 02:41:23,426 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-13 02:41:23,426 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-13 02:41:23,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:23,552 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) [2021-11-13 02:41:23,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@29b03d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23, skipping insertion in model container [2021-11-13 02:41:23,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:23,554 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:41:23,556 INFO L158 Benchmark]: Toolchain (without parser) took 4803.00ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 47.6MB in the beginning and 75.4MB in the end (delta: -27.7MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2021-11-13 02:41:23,558 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory was 83.0MB in the beginning and 82.9MB in the end (delta: 85.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:41:23,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4796.70ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 47.5MB in the beginning and 75.4MB in the end (delta: -27.9MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2021-11-13 02:41:23,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory was 83.0MB in the beginning and 82.9MB in the end (delta: 85.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4796.70ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 47.5MB in the beginning and 75.4MB in the end (delta: -27.9MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7077]: 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_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:41:26,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:41:26,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:41:26,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:41:26,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:41:26,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:41:26,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:41:26,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:41:26,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:41:26,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:41:26,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:41:26,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:41:26,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:41:26,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:41:26,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:41:26,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:41:26,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:41:26,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:41:26,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:41:26,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:41:26,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:41:26,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:41:26,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:41:26,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:41:26,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:41:26,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:41:26,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:41:26,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:41:26,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:41:26,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:41:26,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:41:26,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:41:26,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:41:26,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:41:26,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:41:26,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:41:26,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:41:26,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:41:26,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:41:26,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:41:26,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:41:26,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:41:26,263 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:41:26,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:41:26,264 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:41:26,264 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:41:26,265 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:41:26,265 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:41:26,265 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:41:26,266 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:41:26,266 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:41:26,266 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:41:26,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:41:26,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:41:26,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:41:26,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:41:26,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:41:26,268 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:41:26,269 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:41:26,269 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:41:26,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:41:26,269 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:41:26,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:41:26,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:41:26,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:41:26,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:41:26,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:26,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:41:26,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:41:26,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:41:26,272 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:41:26,272 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:41:26,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:41:26,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:41:26,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:41:26,273 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_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2021-11-13 02:41:26,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:41:26,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:41:26,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:41:26,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:41:26,664 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:41:26,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-13 02:41:26,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data/91629ec22/59d2e3f790144ae580fa63bbb1a0663f/FLAGb88d5561c [2021-11-13 02:41:27,894 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:41:27,894 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-13 02:41:27,993 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data/91629ec22/59d2e3f790144ae580fa63bbb1a0663f/FLAGb88d5561c [2021-11-13 02:41:28,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/data/91629ec22/59d2e3f790144ae580fa63bbb1a0663f [2021-11-13 02:41:28,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:41:28,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:41:28,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:28,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:41:28,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:41:28,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:28" (1/1) ... [2021-11-13 02:41:28,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3524668c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:28, skipping insertion in model container [2021-11-13 02:41:28,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:28" (1/1) ... [2021-11-13 02:41:28,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:41:28,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:41:32,120 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:32,171 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:32,220 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:41:33,095 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-13 02:41:33,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-13 02:41:33,099 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-13 02:41:33,100 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-13 02:41:33,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:33,240 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:41:33,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:41:33,871 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-13 02:41:33,872 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-13 02:41:33,873 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-13 02:41:33,874 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-13 02:41:33,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:33,946 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:41:34,497 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-13 02:41:34,498 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-13 02:41:34,499 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-13 02:41:34,504 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-13 02:41:34,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:35,010 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:41:35,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35 WrapperNode [2021-11-13 02:41:35,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:35,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:41:35,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:41:35,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:41:35,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:35,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:35,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:41:35,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:41:35,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:41:35,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:41:35,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:35,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:35,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:35,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:35,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:36,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:36,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:36,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:41:36,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:41:36,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:41:36,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:41:36,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (1/1) ... [2021-11-13 02:41:36,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:36,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:36,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:41:36,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:41:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2021-11-13 02:41:36,264 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2021-11-13 02:41:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-13 02:41:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-13 02:41:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2021-11-13 02:41:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2021-11-13 02:41:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2021-11-13 02:41:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2021-11-13 02:41:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 02:41:36,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 02:41:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 02:41:36,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 02:41:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 02:41:36,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 02:41:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2021-11-13 02:41:36,267 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2021-11-13 02:41:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2021-11-13 02:41:36,267 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2021-11-13 02:41:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:41:36,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:41:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 02:41:36,268 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 02:41:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 02:41:36,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 02:41:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 02:41:36,269 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 02:41:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2021-11-13 02:41:36,270 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2021-11-13 02:41:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2021-11-13 02:41:36,270 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2021-11-13 02:41:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2021-11-13 02:41:36,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2021-11-13 02:41:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 02:41:36,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 02:41:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2021-11-13 02:41:36,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2021-11-13 02:41:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2021-11-13 02:41:36,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2021-11-13 02:41:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2021-11-13 02:41:36,273 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2021-11-13 02:41:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 02:41:36,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 02:41:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 02:41:36,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 02:41:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-13 02:41:36,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-13 02:41:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:41:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2021-11-13 02:41:36,277 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2021-11-13 02:41:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-13 02:41:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:41:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:41:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 02:41:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2021-11-13 02:41:36,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2021-11-13 02:41:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2021-11-13 02:41:36,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2021-11-13 02:41:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2021-11-13 02:41:36,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2021-11-13 02:41:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2021-11-13 02:41:36,280 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2021-11-13 02:41:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 02:41:36,281 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 02:41:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 02:41:36,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 02:41:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2021-11-13 02:41:36,283 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2021-11-13 02:41:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 02:41:36,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 02:41:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2021-11-13 02:41:36,283 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2021-11-13 02:41:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 02:41:36,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 02:41:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2021-11-13 02:41:36,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2021-11-13 02:41:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 02:41:36,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 02:41:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 02:41:36,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 02:41:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 02:41:36,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 02:41:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 02:41:36,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 02:41:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-13 02:41:36,287 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-13 02:41:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2021-11-13 02:41:36,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2021-11-13 02:41:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2021-11-13 02:41:36,288 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2021-11-13 02:41:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 02:41:36,288 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 02:41:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 02:41:36,289 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 02:41:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2021-11-13 02:41:36,289 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2021-11-13 02:41:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2021-11-13 02:41:36,290 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2021-11-13 02:41:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2021-11-13 02:41:36,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2021-11-13 02:41:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 02:41:36,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 02:41:36,293 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-13 02:41:36,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-13 02:41:36,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:41:36,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 02:41:36,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 02:41:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 02:41:36,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 02:41:36,301 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-13 02:41:36,301 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-13 02:41:36,301 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-13 02:41:36,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-13 02:41:36,307 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2021-11-13 02:41:36,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2021-11-13 02:41:36,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 02:41:36,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 02:41:36,307 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 02:41:36,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 02:41:36,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:41:36,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 02:41:36,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 02:41:36,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:41:36,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:41:36,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 02:41:36,308 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2021-11-13 02:41:36,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2021-11-13 02:41:36,309 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2021-11-13 02:41:36,309 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2021-11-13 02:41:36,309 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2021-11-13 02:41:36,309 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2021-11-13 02:41:36,309 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 02:41:36,309 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 02:41:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2021-11-13 02:41:36,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2021-11-13 02:41:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2021-11-13 02:41:36,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2021-11-13 02:41:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-13 02:41:36,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-13 02:41:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2021-11-13 02:41:36,311 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2021-11-13 02:41:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2021-11-13 02:41:36,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2021-11-13 02:41:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 02:41:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-13 02:41:36,311 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-13 02:41:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:41:36,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:41:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:41:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 02:41:36,312 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 02:41:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2021-11-13 02:41:36,312 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2021-11-13 02:41:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:41:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:41:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 02:41:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 02:41:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:41:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 02:41:36,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 02:41:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-13 02:41:36,320 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-13 02:41:36,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:41:36,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:41:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2021-11-13 02:41:36,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2021-11-13 02:41:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2021-11-13 02:41:36,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2021-11-13 02:41:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2021-11-13 02:41:36,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2021-11-13 02:41:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2021-11-13 02:41:36,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2021-11-13 02:41:36,322 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-13 02:41:36,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-13 02:41:36,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 02:41:36,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 02:41:36,322 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 02:41:36,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 02:41:36,323 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2021-11-13 02:41:36,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2021-11-13 02:41:36,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 02:41:36,323 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 02:41:36,323 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 02:41:36,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 02:41:36,323 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2021-11-13 02:41:36,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2021-11-13 02:41:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:41:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2021-11-13 02:41:36,324 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2021-11-13 02:41:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:41:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:41:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:41:36,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 02:41:36,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:41:36,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:41:36,325 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-13 02:41:36,325 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-13 02:41:36,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 02:41:36,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 02:41:36,326 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2021-11-13 02:41:36,326 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2021-11-13 02:41:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2021-11-13 02:41:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2021-11-13 02:41:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2021-11-13 02:41:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2021-11-13 02:41:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2021-11-13 02:41:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2021-11-13 02:41:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-13 02:41:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-13 02:41:36,329 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2021-11-13 02:41:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2021-11-13 02:41:36,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:41:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:41:36,329 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2021-11-13 02:41:36,329 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2021-11-13 02:41:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 02:41:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 02:41:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2021-11-13 02:41:36,330 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2021-11-13 02:41:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 02:41:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:41:36,330 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-13 02:41:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-13 02:41:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 02:41:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 02:41:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2021-11-13 02:41:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2021-11-13 02:41:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2021-11-13 02:41:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2021-11-13 02:41:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-13 02:41:36,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-13 02:41:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-13 02:41:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-13 02:41:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-13 02:41:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-13 02:41:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 02:41:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 02:41:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2021-11-13 02:41:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2021-11-13 02:41:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 02:41:36,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 02:41:36,342 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2021-11-13 02:41:36,342 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2021-11-13 02:41:36,342 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2021-11-13 02:41:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2021-11-13 02:41:36,343 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-13 02:41:36,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-13 02:41:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-13 02:41:36,343 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2021-11-13 02:41:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2021-11-13 02:41:36,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 02:41:36,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 02:41:36,343 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2021-11-13 02:41:36,344 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2021-11-13 02:41:36,344 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2021-11-13 02:41:36,344 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2021-11-13 02:41:36,344 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-13 02:41:36,344 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-13 02:41:38,127 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 02:42:19,418 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 02:42:19,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:42:19,636 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:42:19,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:42:19 BoogieIcfgContainer [2021-11-13 02:42:19,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:42:19,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:42:19,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:42:19,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:42:19,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:41:28" (1/3) ... [2021-11-13 02:42:19,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b91a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:42:19, skipping insertion in model container [2021-11-13 02:42:19,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:35" (2/3) ... [2021-11-13 02:42:19,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b91a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:42:19, skipping insertion in model container [2021-11-13 02:42:19,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:42:19" (3/3) ... [2021-11-13 02:42:19,653 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-13 02:42:19,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:42:19,660 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 02:42:19,730 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:42:19,737 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 [2021-11-13 02:42:19,738 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 02:42:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 3088 states, 1764 states have (on average 1.251700680272109) internal successors, (2208), 1802 states have internal predecessors, (2208), 1209 states have call successors, (1209), 113 states have call predecessors, (1209), 112 states have return successors, (1201), 1184 states have call predecessors, (1201), 1201 states have call successors, (1201) [2021-11-13 02:42:19,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-13 02:42:19,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:19,871 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:19,872 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:42:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:19,878 INFO L85 PathProgramCache]: Analyzing trace with hash 978317410, now seen corresponding path program 1 times [2021-11-13 02:42:19,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:19,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022713016] [2021-11-13 02:42:19,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:19,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:19,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:19,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:19,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:42:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:27,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 3840 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:42:27,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2021-11-13 02:42:28,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:29,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2021-11-13 02:42:29,588 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:29,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022713016] [2021-11-13 02:42:29,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022713016] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:42:29,593 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:42:29,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:42:29,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70427657] [2021-11-13 02:42:29,599 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:29,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:42:29,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:29,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:42:29,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:42:29,678 INFO L87 Difference]: Start difference. First operand has 3088 states, 1764 states have (on average 1.251700680272109) internal successors, (2208), 1802 states have internal predecessors, (2208), 1209 states have call successors, (1209), 113 states have call predecessors, (1209), 112 states have return successors, (1201), 1184 states have call predecessors, (1201), 1201 states have call successors, (1201) Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-13 02:42:32,118 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 [] [2021-11-13 02:43:01,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:43:01,099 INFO L93 Difference]: Finished difference Result 11963 states and 18081 transitions. [2021-11-13 02:43:01,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:43:01,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 424 [2021-11-13 02:43:01,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:43:01,387 INFO L225 Difference]: With dead ends: 11963 [2021-11-13 02:43:01,387 INFO L226 Difference]: Without dead ends: 8929 [2021-11-13 02:43:01,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 844 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:43:01,439 INFO L933 BasicCegarLoop]: 6915 mSDtfsCounter, 11040 mSDsluCounter, 6563 mSDsCounter, 0 mSdLazyCounter, 2434 mSolverCounterSat, 2299 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28037.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11040 SdHoareTripleChecker+Valid, 13478 SdHoareTripleChecker+Invalid, 4734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 119.24ms SdHoareTripleChecker+Time, 2299 IncrementalHoareTripleChecker+Valid, 2434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30300.62ms IncrementalHoareTripleChecker+Time [2021-11-13 02:43:01,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11040 Valid, 13478 Invalid, 4734 Unknown, 0 Unchecked, 119.24ms Time], IncrementalHoareTripleChecker [2299 Valid, 2434 Invalid, 1 Unknown, 0 Unchecked, 30300.62ms Time] [2021-11-13 02:43:01,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8929 states. [2021-11-13 02:43:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8929 to 8903. [2021-11-13 02:43:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8903 states, 5104 states have (on average 1.250587774294671) internal successors, (6383), 5208 states have internal predecessors, (6383), 3467 states have call successors, (3467), 330 states have call predecessors, (3467), 329 states have return successors, (3463), 3412 states have call predecessors, (3463), 3463 states have call successors, (3463) [2021-11-13 02:43:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8903 states to 8903 states and 13313 transitions. [2021-11-13 02:43:02,425 INFO L78 Accepts]: Start accepts. Automaton has 8903 states and 13313 transitions. Word has length 424 [2021-11-13 02:43:02,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:43:02,431 INFO L470 AbstractCegarLoop]: Abstraction has 8903 states and 13313 transitions. [2021-11-13 02:43:02,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-13 02:43:02,451 INFO L276 IsEmpty]: Start isEmpty. Operand 8903 states and 13313 transitions. [2021-11-13 02:43:02,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-11-13 02:43:02,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:43:02,470 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:43:02,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:43:02,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:43:02,680 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:43:02,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:43:02,681 INFO L85 PathProgramCache]: Analyzing trace with hash -548436740, now seen corresponding path program 1 times [2021-11-13 02:43:02,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:43:02,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656726833] [2021-11-13 02:43:02,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:02,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:43:02,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:43:02,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:43:02,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:43:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:10,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 3864 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:43:10,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2021-11-13 02:43:11,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:12,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2021-11-13 02:43:12,310 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:43:12,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656726833] [2021-11-13 02:43:12,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656726833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:43:12,314 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:43:12,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:43:12,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130851858] [2021-11-13 02:43:12,316 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:43:12,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:43:12,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:43:12,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:43:12,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:43:12,322 INFO L87 Difference]: Start difference. First operand 8903 states and 13313 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-13 02:43:14,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:39,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:43:39,482 INFO L93 Difference]: Finished difference Result 34445 states and 51710 transitions. [2021-11-13 02:43:39,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:43:39,482 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), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 425 [2021-11-13 02:43:39,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:43:39,827 INFO L225 Difference]: With dead ends: 34445 [2021-11-13 02:43:39,827 INFO L226 Difference]: Without dead ends: 25619 [2021-11-13 02:43:39,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 846 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:43:39,957 INFO L933 BasicCegarLoop]: 6911 mSDtfsCounter, 8628 mSDsluCounter, 9544 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24067.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8628 SdHoareTripleChecker+Valid, 16455 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.03ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25435.34ms IncrementalHoareTripleChecker+Time [2021-11-13 02:43:39,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8628 Valid, 16455 Invalid, 2369 Unknown, 0 Unchecked, 81.03ms Time], IncrementalHoareTripleChecker [16 Valid, 2352 Invalid, 1 Unknown, 0 Unchecked, 25435.34ms Time] [2021-11-13 02:43:40,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25619 states. [2021-11-13 02:43:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25619 to 25557. [2021-11-13 02:43:42,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25557 states, 14510 states have (on average 1.2494141971054444) internal successors, (18129), 14806 states have internal predecessors, (18129), 10077 states have call successors, (10077), 974 states have call predecessors, (10077), 967 states have return successors, (10211), 9896 states have call predecessors, (10211), 10073 states have call successors, (10211) [2021-11-13 02:43:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25557 states to 25557 states and 38417 transitions. [2021-11-13 02:43:43,228 INFO L78 Accepts]: Start accepts. Automaton has 25557 states and 38417 transitions. Word has length 425 [2021-11-13 02:43:43,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:43:43,230 INFO L470 AbstractCegarLoop]: Abstraction has 25557 states and 38417 transitions. [2021-11-13 02:43:43,231 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), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-13 02:43:43,231 INFO L276 IsEmpty]: Start isEmpty. Operand 25557 states and 38417 transitions. [2021-11-13 02:43:43,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-11-13 02:43:43,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:43:43,263 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:43:43,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:43:43,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:43:43,477 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:43:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:43:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1961762944, now seen corresponding path program 1 times [2021-11-13 02:43:43,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:43:43,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988633468] [2021-11-13 02:43:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:43,483 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:43:43,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:43:43,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:43:43,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:43:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:50,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 3965 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:43:50,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2021-11-13 02:43:58,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:44:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2021-11-13 02:44:01,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:44:01,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988633468] [2021-11-13 02:44:01,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988633468] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:44:01,433 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:44:01,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-13 02:44:01,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573727314] [2021-11-13 02:44:01,434 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:44:01,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:44:01,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:44:01,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:44:01,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:44:01,437 INFO L87 Difference]: Start difference. First operand 25557 states and 38417 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, (93), 4 states have call predecessors, (93), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2021-11-13 02:44:03,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:44:03,209 INFO L93 Difference]: Finished difference Result 25563 states and 38422 transitions. [2021-11-13 02:44:03,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:44:03,210 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, (93), 4 states have call predecessors, (93), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 480 [2021-11-13 02:44:03,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:44:03,411 INFO L225 Difference]: With dead ends: 25563 [2021-11-13 02:44:03,411 INFO L226 Difference]: Without dead ends: 25561 [2021-11-13 02:44:03,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 961 GetRequests, 953 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:44:03,433 INFO L933 BasicCegarLoop]: 4583 mSDtfsCounter, 4418 mSDsluCounter, 13735 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 199.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4429 SdHoareTripleChecker+Valid, 18318 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 79.69ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 206.86ms IncrementalHoareTripleChecker+Time [2021-11-13 02:44:03,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4429 Valid, 18318 Invalid, 24 Unknown, 0 Unchecked, 79.69ms Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 206.86ms Time] [2021-11-13 02:44:03,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25561 states. [2021-11-13 02:44:05,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25561 to 25561. [2021-11-13 02:44:05,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25561 states, 14513 states have (on average 1.2493626403913733) internal successors, (18132), 14809 states have internal predecessors, (18132), 10077 states have call successors, (10077), 975 states have call predecessors, (10077), 968 states have return successors, (10211), 9896 states have call predecessors, (10211), 10073 states have call successors, (10211) [2021-11-13 02:44:06,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25561 states to 25561 states and 38420 transitions. [2021-11-13 02:44:06,284 INFO L78 Accepts]: Start accepts. Automaton has 25561 states and 38420 transitions. Word has length 480 [2021-11-13 02:44:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:44:06,286 INFO L470 AbstractCegarLoop]: Abstraction has 25561 states and 38420 transitions. [2021-11-13 02:44:06,286 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, (93), 4 states have call predecessors, (93), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2021-11-13 02:44:06,286 INFO L276 IsEmpty]: Start isEmpty. Operand 25561 states and 38420 transitions. [2021-11-13 02:44:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2021-11-13 02:44:06,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:44:06,310 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:44:06,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-13 02:44:06,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:44:06,524 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:44:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:44:06,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1948428257, now seen corresponding path program 1 times [2021-11-13 02:44:06,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:44:06,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86356621] [2021-11-13 02:44:06,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:44:06,675 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:44:06,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:44:06,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:44:06,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:44:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:44:14,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 3972 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:44:14,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:44:22,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6156 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2021-11-13 02:44:22,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:44:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6156 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2021-11-13 02:44:25,101 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:44:25,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86356621] [2021-11-13 02:44:25,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86356621] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:44:25,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:44:25,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:44:25,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62961897] [2021-11-13 02:44:25,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:44:25,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:44:25,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:44:25,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:44:25,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:44:25,105 INFO L87 Difference]: Start difference. First operand 25561 states and 38420 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-13 02:44:26,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:44:26,928 INFO L93 Difference]: Finished difference Result 25567 states and 38425 transitions. [2021-11-13 02:44:26,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:44:26,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 485 [2021-11-13 02:44:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:44:27,114 INFO L225 Difference]: With dead ends: 25567 [2021-11-13 02:44:27,114 INFO L226 Difference]: Without dead ends: 25565 [2021-11-13 02:44:27,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 963 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:44:27,136 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 151.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4479 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.64ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 156.46ms IncrementalHoareTripleChecker+Time [2021-11-13 02:44:27,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4479 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 35.64ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 156.46ms Time] [2021-11-13 02:44:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25565 states. [2021-11-13 02:44:29,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25565 to 25565. [2021-11-13 02:44:29,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25565 states, 14516 states have (on average 1.2493111049875998) internal successors, (18135), 14812 states have internal predecessors, (18135), 10077 states have call successors, (10077), 976 states have call predecessors, (10077), 969 states have return successors, (10211), 9896 states have call predecessors, (10211), 10073 states have call successors, (10211) [2021-11-13 02:44:30,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25565 states to 25565 states and 38423 transitions. [2021-11-13 02:44:30,230 INFO L78 Accepts]: Start accepts. Automaton has 25565 states and 38423 transitions. Word has length 485 [2021-11-13 02:44:30,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:44:30,235 INFO L470 AbstractCegarLoop]: Abstraction has 25565 states and 38423 transitions. [2021-11-13 02:44:30,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-13 02:44:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 25565 states and 38423 transitions. [2021-11-13 02:44:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-11-13 02:44:30,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:44:30,262 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 3, 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] [2021-11-13 02:44:30,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:44:30,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:44:30,488 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:44:30,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:44:30,489 INFO L85 PathProgramCache]: Analyzing trace with hash 653034144, now seen corresponding path program 1 times [2021-11-13 02:44:30,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:44:30,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892575051] [2021-11-13 02:44:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:44:30,497 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:44:30,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:44:30,498 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:44:30,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:44:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:44:37,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 3979 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:44:37,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:44:45,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6158 trivial. 0 not checked. [2021-11-13 02:44:45,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:44:48,068 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6158 trivial. 0 not checked. [2021-11-13 02:44:48,068 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:44:48,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892575051] [2021-11-13 02:44:48,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892575051] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:44:48,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:44:48,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:44:48,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629140692] [2021-11-13 02:44:48,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:44:48,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:44:48,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:44:48,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:44:48,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:44:48,072 INFO L87 Difference]: Start difference. First operand 25565 states and 38423 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-13 02:44:49,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:44:49,616 INFO L93 Difference]: Finished difference Result 25571 states and 38428 transitions. [2021-11-13 02:44:49,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:44:49,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 490 [2021-11-13 02:44:49,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:44:49,812 INFO L225 Difference]: With dead ends: 25571 [2021-11-13 02:44:49,813 INFO L226 Difference]: Without dead ends: 25569 [2021-11-13 02:44:49,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 981 GetRequests, 973 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:44:49,832 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4478 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.99ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 137.55ms IncrementalHoareTripleChecker+Time [2021-11-13 02:44:49,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4478 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 26.99ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 137.55ms Time] [2021-11-13 02:44:49,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25569 states. [2021-11-13 02:44:52,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25569 to 25569. [2021-11-13 02:44:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25569 states, 14519 states have (on average 1.2492595908809148) internal successors, (18138), 14815 states have internal predecessors, (18138), 10077 states have call successors, (10077), 977 states have call predecessors, (10077), 970 states have return successors, (10211), 9896 states have call predecessors, (10211), 10073 states have call successors, (10211) [2021-11-13 02:44:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25569 states to 25569 states and 38426 transitions. [2021-11-13 02:44:52,539 INFO L78 Accepts]: Start accepts. Automaton has 25569 states and 38426 transitions. Word has length 490 [2021-11-13 02:44:52,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:44:52,541 INFO L470 AbstractCegarLoop]: Abstraction has 25569 states and 38426 transitions. [2021-11-13 02:44:52,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-13 02:44:52,541 INFO L276 IsEmpty]: Start isEmpty. Operand 25569 states and 38426 transitions. [2021-11-13 02:44:52,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-11-13 02:44:52,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:44:52,567 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 02:44:52,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:44:52,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:44:52,792 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:44:52,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:44:52,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1526343553, now seen corresponding path program 1 times [2021-11-13 02:44:52,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:44:52,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332967023] [2021-11-13 02:44:52,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:44:52,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:44:52,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:44:52,802 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:44:52,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:44:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:45:00,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 3986 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:45:00,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:45:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6172 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6166 trivial. 0 not checked. [2021-11-13 02:45:08,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:45:11,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6172 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6166 trivial. 0 not checked. [2021-11-13 02:45:11,957 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:45:11,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332967023] [2021-11-13 02:45:11,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332967023] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:45:11,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:45:11,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:45:11,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898681636] [2021-11-13 02:45:11,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:45:11,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:45:11,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:45:11,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:45:11,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:45:11,962 INFO L87 Difference]: Start difference. First operand 25569 states and 38426 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-13 02:45:14,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:45:14,155 INFO L93 Difference]: Finished difference Result 25575 states and 38431 transitions. [2021-11-13 02:45:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:45:14,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 495 [2021-11-13 02:45:14,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:45:14,369 INFO L225 Difference]: With dead ends: 25575 [2021-11-13 02:45:14,370 INFO L226 Difference]: Without dead ends: 25573 [2021-11-13 02:45:14,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 991 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:45:14,389 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.05ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 165.21ms IncrementalHoareTripleChecker+Time [2021-11-13 02:45:14,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4477 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 30.05ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 165.21ms Time] [2021-11-13 02:45:14,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25573 states. [2021-11-13 02:45:16,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25573 to 25573. [2021-11-13 02:45:16,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25573 states, 14522 states have (on average 1.2492080980581186) internal successors, (18141), 14818 states have internal predecessors, (18141), 10077 states have call successors, (10077), 978 states have call predecessors, (10077), 971 states have return successors, (10211), 9896 states have call predecessors, (10211), 10073 states have call successors, (10211) [2021-11-13 02:45:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25573 states to 25573 states and 38429 transitions. [2021-11-13 02:45:17,299 INFO L78 Accepts]: Start accepts. Automaton has 25573 states and 38429 transitions. Word has length 495 [2021-11-13 02:45:17,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:45:17,301 INFO L470 AbstractCegarLoop]: Abstraction has 25573 states and 38429 transitions. [2021-11-13 02:45:17,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-13 02:45:17,301 INFO L276 IsEmpty]: Start isEmpty. Operand 25573 states and 38429 transitions. [2021-11-13 02:45:17,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-11-13 02:45:17,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:45:17,337 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 5, 4, 4, 4, 4, 4, 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] [2021-11-13 02:45:17,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:45:17,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:45:17,564 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:45:17,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:45:17,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1759547968, now seen corresponding path program 1 times [2021-11-13 02:45:17,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:45:17,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243502904] [2021-11-13 02:45:17,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:45:17,573 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:45:17,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:45:17,575 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:45:17,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:45:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:45:25,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 3993 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:45:25,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:45:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6186 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6178 trivial. 0 not checked. [2021-11-13 02:45:34,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:45:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 6186 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6178 trivial. 0 not checked. [2021-11-13 02:45:38,084 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:45:38,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243502904] [2021-11-13 02:45:38,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243502904] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:45:38,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:45:38,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:45:38,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254569729] [2021-11-13 02:45:38,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:45:38,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:45:38,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:45:38,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:45:38,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:45:38,087 INFO L87 Difference]: Start difference. First operand 25573 states and 38429 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-13 02:45:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:45:40,183 INFO L93 Difference]: Finished difference Result 25579 states and 38434 transitions. [2021-11-13 02:45:40,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:45:40,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 500 [2021-11-13 02:45:40,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:45:40,436 INFO L225 Difference]: With dead ends: 25579 [2021-11-13 02:45:40,437 INFO L226 Difference]: Without dead ends: 25577 [2021-11-13 02:45:40,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1001 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:45:40,457 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4476 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.64ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.20ms IncrementalHoareTripleChecker+Time [2021-11-13 02:45:40,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4476 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 27.64ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 164.20ms Time] [2021-11-13 02:45:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25577 states. [2021-11-13 02:45:42,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25577 to 25577. [2021-11-13 02:45:42,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25577 states, 14525 states have (on average 1.249156626506024) internal successors, (18144), 14821 states have internal predecessors, (18144), 10077 states have call successors, (10077), 979 states have call predecessors, (10077), 972 states have return successors, (10211), 9896 states have call predecessors, (10211), 10073 states have call successors, (10211) [2021-11-13 02:45:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25577 states to 25577 states and 38432 transitions. [2021-11-13 02:45:43,022 INFO L78 Accepts]: Start accepts. Automaton has 25577 states and 38432 transitions. Word has length 500 [2021-11-13 02:45:43,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:45:43,024 INFO L470 AbstractCegarLoop]: Abstraction has 25577 states and 38432 transitions. [2021-11-13 02:45:43,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-13 02:45:43,025 INFO L276 IsEmpty]: Start isEmpty. Operand 25577 states and 38432 transitions. [2021-11-13 02:45:43,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2021-11-13 02:45:43,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:45:43,056 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 6, 5, 5, 5, 5, 5, 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] [2021-11-13 02:45:43,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:45:43,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:45:43,272 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:45:43,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:45:43,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1168440500, now seen corresponding path program 1 times [2021-11-13 02:45:43,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:45:43,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874912193] [2021-11-13 02:45:43,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:45:43,278 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:45:43,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:45:43,279 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:45:43,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:45:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:45:51,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 4048 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:45:51,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:45:52,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 6069 trivial. 0 not checked. [2021-11-13 02:45:52,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:45:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6200 trivial. 0 not checked. [2021-11-13 02:45:54,145 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:45:54,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874912193] [2021-11-13 02:45:54,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874912193] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:45:54,145 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:45:54,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:45:54,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146560676] [2021-11-13 02:45:54,146 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:45:54,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:45:54,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:45:54,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:45:54,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:45:54,149 INFO L87 Difference]: Start difference. First operand 25577 states and 38432 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2021-11-13 02:45:56,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:46:23,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:46:23,871 INFO L93 Difference]: Finished difference Result 59609 states and 89540 transitions. [2021-11-13 02:46:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:46:23,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 517 [2021-11-13 02:46:23,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:46:24,131 INFO L225 Difference]: With dead ends: 59609 [2021-11-13 02:46:24,131 INFO L226 Difference]: Without dead ends: 42505 [2021-11-13 02:46:24,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1032 GetRequests, 1030 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:46:24,291 INFO L933 BasicCegarLoop]: 10092 mSDtfsCounter, 8807 mSDsluCounter, 7917 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25124.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8807 SdHoareTripleChecker+Valid, 18009 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.88ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26479.54ms IncrementalHoareTripleChecker+Time [2021-11-13 02:46:24,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8807 Valid, 18009 Invalid, 2369 Unknown, 0 Unchecked, 61.88ms Time], IncrementalHoareTripleChecker [12 Valid, 2356 Invalid, 1 Unknown, 0 Unchecked, 26479.54ms Time] [2021-11-13 02:46:24,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42505 states. [2021-11-13 02:46:28,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42505 to 42459. [2021-11-13 02:46:28,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42459 states, 24109 states have (on average 1.248911194989423) internal successors, (30110), 24595 states have internal predecessors, (30110), 16730 states have call successors, (16730), 1628 states have call predecessors, (16730), 1617 states have return successors, (16956), 16435 states have call predecessors, (16956), 16726 states have call successors, (16956) [2021-11-13 02:46:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42459 states to 42459 states and 63796 transitions. [2021-11-13 02:46:28,963 INFO L78 Accepts]: Start accepts. Automaton has 42459 states and 63796 transitions. Word has length 517 [2021-11-13 02:46:28,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:46:28,964 INFO L470 AbstractCegarLoop]: Abstraction has 42459 states and 63796 transitions. [2021-11-13 02:46:28,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2021-11-13 02:46:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand 42459 states and 63796 transitions. [2021-11-13 02:46:28,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-11-13 02:46:28,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:46:28,991 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 6, 5, 5, 4, 4, 4, 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] [2021-11-13 02:46:29,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:46:29,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:46:29,193 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:46:29,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:46:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1111289633, now seen corresponding path program 1 times [2021-11-13 02:46:29,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:46:29,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011684475] [2021-11-13 02:46:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:46:29,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:46:29,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:46:29,200 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:46:29,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 02:46:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:46:37,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 4000 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:46:37,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:46:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6204 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6194 trivial. 0 not checked. [2021-11-13 02:46:45,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:46:49,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6204 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6194 trivial. 0 not checked. [2021-11-13 02:46:49,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:46:49,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011684475] [2021-11-13 02:46:49,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011684475] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:46:49,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:46:49,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:46:49,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392883695] [2021-11-13 02:46:49,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:46:49,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:46:49,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:46:49,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:46:49,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:46:49,264 INFO L87 Difference]: Start difference. First operand 42459 states and 63796 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-13 02:46:52,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:46:52,653 INFO L93 Difference]: Finished difference Result 42465 states and 63801 transitions. [2021-11-13 02:46:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:46:52,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 505 [2021-11-13 02:46:52,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:46:53,194 INFO L225 Difference]: With dead ends: 42465 [2021-11-13 02:46:53,195 INFO L226 Difference]: Without dead ends: 42463 [2021-11-13 02:46:53,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1011 GetRequests, 1003 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:46:53,229 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 161.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4475 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.61ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 166.76ms IncrementalHoareTripleChecker+Time [2021-11-13 02:46:53,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4475 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 32.61ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 166.76ms Time] [2021-11-13 02:46:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42463 states. [2021-11-13 02:46:57,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42463 to 42463. [2021-11-13 02:46:57,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42463 states, 24112 states have (on average 1.2488802256138023) internal successors, (30113), 24598 states have internal predecessors, (30113), 16730 states have call successors, (16730), 1629 states have call predecessors, (16730), 1618 states have return successors, (16956), 16435 states have call predecessors, (16956), 16726 states have call successors, (16956) [2021-11-13 02:46:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42463 states to 42463 states and 63799 transitions. [2021-11-13 02:46:58,188 INFO L78 Accepts]: Start accepts. Automaton has 42463 states and 63799 transitions. Word has length 505 [2021-11-13 02:46:58,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:46:58,189 INFO L470 AbstractCegarLoop]: Abstraction has 42463 states and 63799 transitions. [2021-11-13 02:46:58,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-13 02:46:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 42463 states and 63799 transitions. [2021-11-13 02:46:58,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2021-11-13 02:46:58,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:46:58,222 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 7, 6, 6, 5, 5, 5, 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] [2021-11-13 02:46:58,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:46:58,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:46:58,423 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:46:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:46:58,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2139152220, now seen corresponding path program 1 times [2021-11-13 02:46:58,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:46:58,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776344232] [2021-11-13 02:46:58,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:46:58,429 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:46:58,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:46:58,430 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:46:58,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 02:47:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:47:06,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 4054 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:47:06,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:47:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 6091 trivial. 0 not checked. [2021-11-13 02:47:08,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:47:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6220 trivial. 0 not checked. [2021-11-13 02:47:09,510 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:47:09,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776344232] [2021-11-13 02:47:09,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776344232] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:47:09,510 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:47:09,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:47:09,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731807702] [2021-11-13 02:47:09,511 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:47:09,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:47:09,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:47:09,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:47:09,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:47:09,513 INFO L87 Difference]: Start difference. First operand 42463 states and 63799 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 4 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-13 02:47:11,902 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 [] [2021-11-13 02:47:43,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:47:43,822 INFO L93 Difference]: Finished difference Result 84962 states and 127599 transitions. [2021-11-13 02:47:43,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:47:43,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 4 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) Word has length 521 [2021-11-13 02:47:43,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:47:44,336 INFO L225 Difference]: With dead ends: 84962 [2021-11-13 02:47:44,337 INFO L226 Difference]: Without dead ends: 50972 [2021-11-13 02:47:44,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 1038 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:47:44,523 INFO L933 BasicCegarLoop]: 10086 mSDtfsCounter, 8955 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 1169 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27557.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8955 SdHoareTripleChecker+Valid, 16653 SdHoareTripleChecker+Invalid, 3597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 70.72ms SdHoareTripleChecker+Time, 1169 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29511.82ms IncrementalHoareTripleChecker+Time [2021-11-13 02:47:44,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8955 Valid, 16653 Invalid, 3597 Unknown, 0 Unchecked, 70.72ms Time], IncrementalHoareTripleChecker [1169 Valid, 2427 Invalid, 1 Unknown, 0 Unchecked, 29511.82ms Time] [2021-11-13 02:47:44,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50972 states. [2021-11-13 02:47:50,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50972 to 50880. [2021-11-13 02:47:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50880 states, 28883 states have (on average 1.2483814008240142) internal successors, (36057), 29464 states have internal predecessors, (36057), 20055 states have call successors, (20055), 1952 states have call predecessors, (20055), 1939 states have return successors, (20327), 19703 states have call predecessors, (20327), 20051 states have call successors, (20327) [2021-11-13 02:47:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50880 states to 50880 states and 76439 transitions. [2021-11-13 02:47:50,765 INFO L78 Accepts]: Start accepts. Automaton has 50880 states and 76439 transitions. Word has length 521 [2021-11-13 02:47:50,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:47:50,766 INFO L470 AbstractCegarLoop]: Abstraction has 50880 states and 76439 transitions. [2021-11-13 02:47:50,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 4 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-13 02:47:50,767 INFO L276 IsEmpty]: Start isEmpty. Operand 50880 states and 76439 transitions. [2021-11-13 02:47:50,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-11-13 02:47:50,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:47:50,784 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 7, 6, 6, 4, 4, 4, 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] [2021-11-13 02:47:50,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:47:50,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:47:50,988 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:47:50,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:47:50,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1611620128, now seen corresponding path program 1 times [2021-11-13 02:47:50,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:47:50,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067552346] [2021-11-13 02:47:50,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:47:50,993 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:47:50,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:47:50,994 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:47:51,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 02:47:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:47:58,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 4007 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:47:58,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:48:08,498 INFO L134 CoverageAnalysis]: Checked inductivity of 6226 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6214 trivial. 0 not checked. [2021-11-13 02:48:08,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:48:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6226 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6214 trivial. 0 not checked. [2021-11-13 02:48:11,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:48:11,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067552346] [2021-11-13 02:48:11,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067552346] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:48:11,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:48:11,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:48:11,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999860168] [2021-11-13 02:48:11,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:48:11,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:48:11,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:48:11,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:48:11,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:48:11,857 INFO L87 Difference]: Start difference. First operand 50880 states and 76439 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-13 02:48:16,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:48:16,420 INFO L93 Difference]: Finished difference Result 51852 states and 77440 transitions. [2021-11-13 02:48:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:48:16,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 510 [2021-11-13 02:48:16,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:48:16,859 INFO L225 Difference]: With dead ends: 51852 [2021-11-13 02:48:16,859 INFO L226 Difference]: Without dead ends: 51850 [2021-11-13 02:48:16,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1013 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:48:16,889 INFO L933 BasicCegarLoop]: 4604 mSDtfsCounter, 4257 mSDsluCounter, 9555 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 170.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4262 SdHoareTripleChecker+Valid, 14159 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.16ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 176.25ms IncrementalHoareTripleChecker+Time [2021-11-13 02:48:16,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4262 Valid, 14159 Invalid, 22 Unknown, 0 Unchecked, 37.16ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 176.25ms Time] [2021-11-13 02:48:16,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51850 states. [2021-11-13 02:48:23,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51850 to 51850. [2021-11-13 02:48:23,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51850 states, 29588 states have (on average 1.2459105042584833) internal successors, (36864), 30169 states have internal predecessors, (36864), 20151 states have call successors, (20151), 2121 states have call predecessors, (20151), 2108 states have return successors, (20423), 19799 states have call predecessors, (20423), 20147 states have call successors, (20423) [2021-11-13 02:48:23,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51850 states to 51850 states and 77438 transitions. [2021-11-13 02:48:23,778 INFO L78 Accepts]: Start accepts. Automaton has 51850 states and 77438 transitions. Word has length 510 [2021-11-13 02:48:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:48:23,779 INFO L470 AbstractCegarLoop]: Abstraction has 51850 states and 77438 transitions. [2021-11-13 02:48:23,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-13 02:48:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 51850 states and 77438 transitions. [2021-11-13 02:48:23,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2021-11-13 02:48:23,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:48:23,803 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 8, 7, 7, 4, 4, 4, 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] [2021-11-13 02:48:23,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-13 02:48:24,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:48:24,020 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:48:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:48:24,021 INFO L85 PathProgramCache]: Analyzing trace with hash -846266049, now seen corresponding path program 1 times [2021-11-13 02:48:24,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:48:24,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742191314] [2021-11-13 02:48:24,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:48:24,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:48:24,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:48:24,028 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:48:24,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320bee83-b274-49d1-babf-afc3f39c3e07/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process