./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/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_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:29:03,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:29:03,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:29:03,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:29:03,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:29:03,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:29:03,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:29:03,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:29:03,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:29:03,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:29:03,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:29:03,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:29:03,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:29:03,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:29:03,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:29:03,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:29:03,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:29:03,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:29:03,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:29:03,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:29:03,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:29:03,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:29:03,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:29:03,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:29:03,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:29:03,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:29:03,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:29:03,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:29:03,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:29:03,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:29:03,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:29:03,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:29:03,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:29:03,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:29:03,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:29:03,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:29:03,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:29:03,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:29:03,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:29:03,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:29:03,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:29:03,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:29:03,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:29:03,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:29:03,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:29:03,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:29:03,776 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:29:03,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:29:03,776 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:29:03,776 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:29:03,777 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:29:03,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:29:03,777 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:29:03,777 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:29:03,778 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:29:03,778 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:29:03,778 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:29:03,779 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:29:03,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:29:03,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:29:03,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:29:03,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:29:03,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:29:03,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:29:03,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:29:03,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:29:03,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:29:03,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:29:03,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:29:03,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:29:03,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:29:03,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:29:03,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:29:03,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:29:03,784 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:29:03,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:29:03,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:29:03,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:29:03,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:29:03,785 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_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2021-11-19 14:29:04,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:29:04,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:29:04,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:29:04,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:29:04,067 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:29:04,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-19 14:29:04,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data/26cf6e4ef/9a7e6dd128b144a8b310887e3d6f9906/FLAG1fd4d3217 [2021-11-19 14:29:05,207 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:29:05,209 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-19 14:29:05,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data/26cf6e4ef/9a7e6dd128b144a8b310887e3d6f9906/FLAG1fd4d3217 [2021-11-19 14:29:05,513 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data/26cf6e4ef/9a7e6dd128b144a8b310887e3d6f9906 [2021-11-19 14:29:05,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:29:05,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:29:05,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:29:05,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:29:05,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:29:05,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:05" (1/1) ... [2021-11-19 14:29:05,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6c72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:05, skipping insertion in model container [2021-11-19 14:29:05,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:05" (1/1) ... [2021-11-19 14:29:05,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:29:05,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:29:07,848 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:07,849 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,191 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,203 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,253 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,267 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,270 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,292 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,293 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,336 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,356 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,357 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,367 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,376 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,377 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,387 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,396 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,413 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,423 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,433 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,441 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,451 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,458 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,465 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,480 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,491 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,492 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,499 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,500 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,526 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,527 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,528 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,549 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:08,550 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,376 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,377 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,377 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,378 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,378 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,378 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,379 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,385 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,394 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,409 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,418 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,447 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,447 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,495 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,506 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,527 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,540 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,555 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,566 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,581 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,589 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,596 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,598 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,607 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,609 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,619 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,632 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,645 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,657 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,658 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,664 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,678 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,696 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,706 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,708 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,716 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,729 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,743 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,751 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,762 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:09,775 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:10,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-19 14:29:10,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-19 14:29:10,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-19 14:29:10,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-19 14:29:10,554 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:29:10,722 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:29:10,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70c6c29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:10, skipping insertion in model container [2021-11-19 14:29:10,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:29:10,724 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:29:10,727 INFO L158 Benchmark]: Toolchain (without parser) took 5195.34ms. Allocated memory was 111.1MB in the beginning and 201.3MB in the end (delta: 90.2MB). Free memory was 80.2MB in the beginning and 144.3MB in the end (delta: -64.1MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2021-11-19 14:29:10,729 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:29:10,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5192.86ms. Allocated memory was 111.1MB in the beginning and 201.3MB in the end (delta: 90.2MB). Free memory was 79.9MB in the beginning and 144.3MB in the end (delta: -64.4MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2021-11-19 14:29:10,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5192.86ms. Allocated memory was 111.1MB in the beginning and 201.3MB in the end (delta: 90.2MB). Free memory was 79.9MB in the beginning and 144.3MB in the end (delta: -64.4MB). Peak memory consumption was 77.1MB. 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_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/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_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:29:13,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:29:13,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:29:13,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:29:13,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:29:13,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:29:13,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:29:13,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:29:13,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:29:13,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:29:13,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:29:13,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:29:13,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:29:13,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:29:13,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:29:13,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:29:13,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:29:13,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:29:13,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:29:13,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:29:13,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:29:13,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:29:13,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:29:13,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:29:13,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:29:13,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:29:13,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:29:13,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:29:13,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:29:13,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:29:13,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:29:13,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:29:13,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:29:13,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:29:13,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:29:13,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:29:13,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:29:13,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:29:13,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:29:13,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:29:13,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:29:13,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:29:13,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:29:13,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:29:13,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:29:13,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:29:13,329 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:29:13,330 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:29:13,330 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:29:13,330 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:29:13,331 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:29:13,331 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:29:13,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:29:13,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:29:13,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:29:13,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:29:13,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:29:13,334 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:29:13,337 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:29:13,338 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:29:13,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:29:13,339 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:29:13,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:29:13,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:29:13,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:29:13,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:29:13,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:29:13,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:29:13,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:29:13,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:29:13,343 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:29:13,343 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:29:13,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:29:13,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:29:13,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:29:13,344 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_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2021-11-19 14:29:13,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:29:13,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:29:13,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:29:13,881 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:29:13,882 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:29:13,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-19 14:29:13,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data/d4f46fb75/96379a0e1ad14406a51b025a6166c647/FLAGdcbc62dee [2021-11-19 14:29:15,139 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:29:15,141 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-19 14:29:15,230 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data/d4f46fb75/96379a0e1ad14406a51b025a6166c647/FLAGdcbc62dee [2021-11-19 14:29:15,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/data/d4f46fb75/96379a0e1ad14406a51b025a6166c647 [2021-11-19 14:29:15,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:29:15,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:29:15,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:29:15,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:29:15,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:29:15,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:15" (1/1) ... [2021-11-19 14:29:15,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce81905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:15, skipping insertion in model container [2021-11-19 14:29:15,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:15" (1/1) ... [2021-11-19 14:29:15,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:29:15,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:29:19,131 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:19,186 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:19,238 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:29:20,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-19 14:29:20,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-19 14:29:20,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-19 14:29:20,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-19 14:29:20,220 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:29:20,331 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:29:20,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:29:21,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-19 14:29:21,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-19 14:29:21,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-19 14:29:21,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-19 14:29:21,147 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:29:21,189 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:29:21,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-19 14:29:21,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-19 14:29:21,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-19 14:29:21,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-19 14:29:21,873 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:29:22,220 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:29:22,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22 WrapperNode [2021-11-19 14:29:22,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:29:22,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:29:22,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:29:22,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:29:22,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:22,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:22,735 INFO L137 Inliner]: procedures = 537, calls = 3749, calls flagged for inlining = 276, calls inlined = 260, statements flattened = 6570 [2021-11-19 14:29:22,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:29:22,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:29:22,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:29:22,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:29:22,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:22,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:22,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:22,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:23,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:23,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:23,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:23,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:29:23,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:29:23,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:29:23,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:29:23,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (1/1) ... [2021-11-19 14:29:23,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:29:23,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:29:23,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:29:23,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:29:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2021-11-19 14:29:23,386 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2021-11-19 14:29:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-19 14:29:23,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-19 14:29:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2021-11-19 14:29:23,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2021-11-19 14:29:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2021-11-19 14:29:23,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2021-11-19 14:29:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:29:23,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:29:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:29:23,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:29:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:29:23,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:29:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2021-11-19 14:29:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2021-11-19 14:29:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2021-11-19 14:29:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2021-11-19 14:29:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:29:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:29:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:29:23,391 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:29:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:29:23,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:29:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 14:29:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 14:29:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2021-11-19 14:29:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2021-11-19 14:29:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2021-11-19 14:29:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2021-11-19 14:29:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2021-11-19 14:29:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2021-11-19 14:29:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:29:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:29:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2021-11-19 14:29:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2021-11-19 14:29:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2021-11-19 14:29:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2021-11-19 14:29:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2021-11-19 14:29:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2021-11-19 14:29:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:29:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:29:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:29:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:29:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-19 14:29:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-19 14:29:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:29:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2021-11-19 14:29:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2021-11-19 14:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:29:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:29:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2021-11-19 14:29:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2021-11-19 14:29:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2021-11-19 14:29:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2021-11-19 14:29:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2021-11-19 14:29:23,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2021-11-19 14:29:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2021-11-19 14:29:23,400 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2021-11-19 14:29:23,401 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:29:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:29:23,401 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 14:29:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 14:29:23,401 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2021-11-19 14:29:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2021-11-19 14:29:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:29:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:29:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2021-11-19 14:29:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2021-11-19 14:29:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:29:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:29:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2021-11-19 14:29:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2021-11-19 14:29:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:29:23,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:29:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:29:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:29:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:29:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:29:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:29:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:29:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-19 14:29:23,406 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-19 14:29:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2021-11-19 14:29:23,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2021-11-19 14:29:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2021-11-19 14:29:23,406 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2021-11-19 14:29:23,407 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:29:23,407 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:29:23,407 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:29:23,407 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:29:23,407 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2021-11-19 14:29:23,408 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2021-11-19 14:29:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2021-11-19 14:29:23,408 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2021-11-19 14:29:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2021-11-19 14:29:23,409 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2021-11-19 14:29:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:29:23,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:29:23,413 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-19 14:29:23,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-19 14:29:23,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:29:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:29:23,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:29:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:29:23,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:29:23,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:29:23,416 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-19 14:29:23,422 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-19 14:29:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-19 14:29:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-19 14:29:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2021-11-19 14:29:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2021-11-19 14:29:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:29:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:29:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:29:23,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:29:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:29:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:29:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:29:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:29:23,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:29:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:29:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2021-11-19 14:29:23,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2021-11-19 14:29:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2021-11-19 14:29:23,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2021-11-19 14:29:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2021-11-19 14:29:23,426 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2021-11-19 14:29:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:29:23,426 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:29:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2021-11-19 14:29:23,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2021-11-19 14:29:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2021-11-19 14:29:23,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2021-11-19 14:29:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-19 14:29:23,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-19 14:29:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2021-11-19 14:29:23,428 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2021-11-19 14:29:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2021-11-19 14:29:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2021-11-19 14:29:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:29:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-19 14:29:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-19 14:29:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:29:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:29:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:29:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:29:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:29:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2021-11-19 14:29:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2021-11-19 14:29:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:29:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:29:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:29:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:29:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:29:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:29:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:29:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-19 14:29:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-19 14:29:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:29:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:29:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2021-11-19 14:29:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2021-11-19 14:29:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2021-11-19 14:29:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2021-11-19 14:29:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2021-11-19 14:29:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2021-11-19 14:29:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2021-11-19 14:29:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2021-11-19 14:29:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-19 14:29:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-19 14:29:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:29:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:29:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:29:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:29:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2021-11-19 14:29:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2021-11-19 14:29:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:29:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:29:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:29:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:29:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2021-11-19 14:29:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2021-11-19 14:29:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:29:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2021-11-19 14:29:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2021-11-19 14:29:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:29:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:29:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:29:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:29:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:29:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:29:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-19 14:29:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-19 14:29:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:29:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:29:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2021-11-19 14:29:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2021-11-19 14:29:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2021-11-19 14:29:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2021-11-19 14:29:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2021-11-19 14:29:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2021-11-19 14:29:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2021-11-19 14:29:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2021-11-19 14:29:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-19 14:29:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-19 14:29:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2021-11-19 14:29:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2021-11-19 14:29:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:29:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:29:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2021-11-19 14:29:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2021-11-19 14:29:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:29:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:29:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2021-11-19 14:29:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2021-11-19 14:29:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:29:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:29:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-19 14:29:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-19 14:29:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:29:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:29:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2021-11-19 14:29:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2021-11-19 14:29:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2021-11-19 14:29:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2021-11-19 14:29:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-19 14:29:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-19 14:29:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-19 14:29:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-19 14:29:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-19 14:29:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-19 14:29:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:29:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:29:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2021-11-19 14:29:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2021-11-19 14:29:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 14:29:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 14:29:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2021-11-19 14:29:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2021-11-19 14:29:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2021-11-19 14:29:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2021-11-19 14:29:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-19 14:29:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:29:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:29:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2021-11-19 14:29:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2021-11-19 14:29:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:29:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:29:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2021-11-19 14:29:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2021-11-19 14:29:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2021-11-19 14:29:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2021-11-19 14:29:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-19 14:29:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-19 14:29:24,744 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:29:24,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:29:25,110 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:30:03,633 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:30:03,881 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:30:03,909 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:30:03,909 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:30:03,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:30:03 BoogieIcfgContainer [2021-11-19 14:30:03,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:30:03,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:30:03,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:30:03,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:30:03,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:29:15" (1/3) ... [2021-11-19 14:30:03,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a977988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:30:03, skipping insertion in model container [2021-11-19 14:30:03,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:22" (2/3) ... [2021-11-19 14:30:03,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a977988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:30:03, skipping insertion in model container [2021-11-19 14:30:03,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:30:03" (3/3) ... [2021-11-19 14:30:03,927 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-19 14:30:03,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:30:03,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:30:04,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:30:04,007 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:30:04,007 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:30:04,101 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) [2021-11-19 14:30:04,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-19 14:30:04,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:04,139 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] [2021-11-19 14:30:04,139 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)] === [2021-11-19 14:30:04,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:04,145 INFO L85 PathProgramCache]: Analyzing trace with hash 978317410, now seen corresponding path program 1 times [2021-11-19 14:30:04,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:04,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471132602] [2021-11-19 14:30:04,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:04,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:04,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:04,173 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:04,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:30:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:11,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 3753 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:30:11,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2021-11-19 14:30:12,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2021-11-19 14:30:13,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:13,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471132602] [2021-11-19 14:30:13,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471132602] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:13,578 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:13,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:30:13,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053822188] [2021-11-19 14:30:13,581 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:13,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:30:13,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:30:13,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:30:13,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:30:13,639 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) [2021-11-19 14:30:15,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:30:50,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:50,026 INFO L93 Difference]: Finished difference Result 11963 states and 18081 transitions. [2021-11-19 14:30:50,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:30:50,036 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 [2021-11-19 14:30:50,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:50,207 INFO L225 Difference]: With dead ends: 11963 [2021-11-19 14:30:50,207 INFO L226 Difference]: Without dead ends: 8929 [2021-11-19 14:30:50,263 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 [2021-11-19 14:30:50,270 INFO L933 BasicCegarLoop]: 6915 mSDtfsCounter, 11040 mSDsluCounter, 6563 mSDsCounter, 0 mSdLazyCounter, 2434 mSolverCounterSat, 2299 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11040 SdHoareTripleChecker+Valid, 13478 SdHoareTripleChecker+Invalid, 4734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2299 IncrementalHoareTripleChecker+Valid, 2434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:50,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11040 Valid, 13478 Invalid, 4734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2299 Valid, 2434 Invalid, 1 Unknown, 0 Unchecked, 35.2s Time] [2021-11-19 14:30:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8929 states. [2021-11-19 14:30:51,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8929 to 8903. [2021-11-19 14:30:51,237 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) [2021-11-19 14:30:51,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8903 states to 8903 states and 13313 transitions. [2021-11-19 14:30:51,555 INFO L78 Accepts]: Start accepts. Automaton has 8903 states and 13313 transitions. Word has length 424 [2021-11-19 14:30:51,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:51,562 INFO L470 AbstractCegarLoop]: Abstraction has 8903 states and 13313 transitions. [2021-11-19 14:30:51,563 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) [2021-11-19 14:30:51,563 INFO L276 IsEmpty]: Start isEmpty. Operand 8903 states and 13313 transitions. [2021-11-19 14:30:51,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-11-19 14:30:51,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:51,584 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] [2021-11-19 14:30:51,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:51,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:30:51,807 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)] === [2021-11-19 14:30:51,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:51,808 INFO L85 PathProgramCache]: Analyzing trace with hash -548436740, now seen corresponding path program 1 times [2021-11-19 14:30:51,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:51,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60389984] [2021-11-19 14:30:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:51,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:51,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:51,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:51,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:30:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:58,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 3777 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:30:58,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2021-11-19 14:31:00,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:01,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2021-11-19 14:31:01,593 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:31:01,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60389984] [2021-11-19 14:31:01,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60389984] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:31:01,594 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:31:01,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:31:01,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425441894] [2021-11-19 14:31:01,595 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:31:01,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:31:01,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:31:01,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:31:01,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:31:01,599 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) [2021-11-19 14:31:03,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:31:32,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:31:32,749 INFO L93 Difference]: Finished difference Result 34445 states and 51710 transitions. [2021-11-19 14:31:32,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:31:32,750 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 [2021-11-19 14:31:32,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:31:33,094 INFO L225 Difference]: With dead ends: 34445 [2021-11-19 14:31:33,095 INFO L226 Difference]: Without dead ends: 25619 [2021-11-19 14:31:33,216 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 [2021-11-19 14:31:33,218 INFO L933 BasicCegarLoop]: 6911 mSDtfsCounter, 8628 mSDsluCounter, 9544 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8628 SdHoareTripleChecker+Valid, 16455 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:31:33,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8628 Valid, 16455 Invalid, 2369 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 2352 Invalid, 1 Unknown, 0 Unchecked, 29.4s Time] [2021-11-19 14:31:33,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25619 states. [2021-11-19 14:31:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25619 to 25557. [2021-11-19 14:31:36,004 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) [2021-11-19 14:31:36,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25557 states to 25557 states and 38417 transitions. [2021-11-19 14:31:36,585 INFO L78 Accepts]: Start accepts. Automaton has 25557 states and 38417 transitions. Word has length 425 [2021-11-19 14:31:36,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:31:36,588 INFO L470 AbstractCegarLoop]: Abstraction has 25557 states and 38417 transitions. [2021-11-19 14:31:36,588 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) [2021-11-19 14:31:36,588 INFO L276 IsEmpty]: Start isEmpty. Operand 25557 states and 38417 transitions. [2021-11-19 14:31:36,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-11-19 14:31:36,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:31:36,617 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] [2021-11-19 14:31:36,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 14:31:36,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:31:36,834 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)] === [2021-11-19 14:31:36,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:31:36,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1961762944, now seen corresponding path program 1 times [2021-11-19 14:31:36,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:31:36,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594308894] [2021-11-19 14:31:36,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:31:36,839 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:31:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:31:36,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:31:36,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:31:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:31:43,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 3878 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:31:43,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:53,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2021-11-19 14:31:53,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:57,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2021-11-19 14:31:57,607 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:31:57,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594308894] [2021-11-19 14:31:57,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594308894] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:31:57,607 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:31:57,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:31:57,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711446836] [2021-11-19 14:31:57,608 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:31:57,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:31:57,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:31:57,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:31:57,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:31:57,611 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) [2021-11-19 14:31:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:31:59,562 INFO L93 Difference]: Finished difference Result 25563 states and 38422 transitions. [2021-11-19 14:31:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:31:59,563 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 [2021-11-19 14:31:59,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:31:59,811 INFO L225 Difference]: With dead ends: 25563 [2021-11-19 14:31:59,812 INFO L226 Difference]: Without dead ends: 25561 [2021-11-19 14:31:59,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 961 GetRequests, 953 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:31:59,837 INFO L933 BasicCegarLoop]: 4583 mSDtfsCounter, 4418 mSDsluCounter, 13735 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4429 SdHoareTripleChecker+Valid, 18318 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:31:59,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4429 Valid, 18318 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:31:59,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25561 states. [2021-11-19 14:32:02,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25561 to 25561. [2021-11-19 14:32:02,480 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) [2021-11-19 14:32:02,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25561 states to 25561 states and 38420 transitions. [2021-11-19 14:32:02,679 INFO L78 Accepts]: Start accepts. Automaton has 25561 states and 38420 transitions. Word has length 480 [2021-11-19 14:32:02,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:32:02,681 INFO L470 AbstractCegarLoop]: Abstraction has 25561 states and 38420 transitions. [2021-11-19 14:32:02,681 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) [2021-11-19 14:32:02,681 INFO L276 IsEmpty]: Start isEmpty. Operand 25561 states and 38420 transitions. [2021-11-19 14:32:02,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2021-11-19 14:32:02,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:32:02,709 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] [2021-11-19 14:32:02,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:32:02,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:32:02,910 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)] === [2021-11-19 14:32:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:32:02,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1948428257, now seen corresponding path program 1 times [2021-11-19 14:32:02,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:32:02,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509032715] [2021-11-19 14:32:02,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:02,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:32:02,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:32:02,915 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:32:02,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:32:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:09,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 3885 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:32:09,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6156 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2021-11-19 14:32:18,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:32:22,427 INFO L134 CoverageAnalysis]: Checked inductivity of 6156 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2021-11-19 14:32:22,427 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:32:22,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509032715] [2021-11-19 14:32:22,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509032715] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:32:22,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:32:22,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:32:22,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163718353] [2021-11-19 14:32:22,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:32:22,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:32:22,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:32:22,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:32:22,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:32:22,431 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) [2021-11-19 14:32:24,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:32:24,119 INFO L93 Difference]: Finished difference Result 25567 states and 38425 transitions. [2021-11-19 14:32:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:32:24,120 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 [2021-11-19 14:32:24,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:32:24,313 INFO L225 Difference]: With dead ends: 25567 [2021-11-19 14:32:24,313 INFO L226 Difference]: Without dead ends: 25565 [2021-11-19 14:32:24,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 963 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:32:24,338 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4479 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:32:24,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4479 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:32:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25565 states. [2021-11-19 14:32:26,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25565 to 25565. [2021-11-19 14:32:26,730 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) [2021-11-19 14:32:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25565 states to 25565 states and 38423 transitions. [2021-11-19 14:32:27,075 INFO L78 Accepts]: Start accepts. Automaton has 25565 states and 38423 transitions. Word has length 485 [2021-11-19 14:32:27,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:32:27,079 INFO L470 AbstractCegarLoop]: Abstraction has 25565 states and 38423 transitions. [2021-11-19 14:32:27,079 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) [2021-11-19 14:32:27,080 INFO L276 IsEmpty]: Start isEmpty. Operand 25565 states and 38423 transitions. [2021-11-19 14:32:27,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-11-19 14:32:27,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:32:27,103 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] [2021-11-19 14:32:27,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:32:27,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:32:27,327 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)] === [2021-11-19 14:32:27,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:32:27,328 INFO L85 PathProgramCache]: Analyzing trace with hash 653034144, now seen corresponding path program 1 times [2021-11-19 14:32:27,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:32:27,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148093146] [2021-11-19 14:32:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:27,333 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:32:27,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:32:27,334 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:32:27,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:32:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:33,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 3892 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:32:33,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:41,273 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6158 trivial. 0 not checked. [2021-11-19 14:32:41,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:32:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6158 trivial. 0 not checked. [2021-11-19 14:32:44,238 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:32:44,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148093146] [2021-11-19 14:32:44,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148093146] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:32:44,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:32:44,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:32:44,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281412296] [2021-11-19 14:32:44,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:32:44,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:32:44,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:32:44,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:32:44,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:32:44,242 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) [2021-11-19 14:32:45,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:32:45,550 INFO L93 Difference]: Finished difference Result 25571 states and 38428 transitions. [2021-11-19 14:32:45,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:32:45,551 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 [2021-11-19 14:32:45,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:32:45,793 INFO L225 Difference]: With dead ends: 25571 [2021-11-19 14:32:45,793 INFO L226 Difference]: Without dead ends: 25569 [2021-11-19 14:32:45,808 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 [2021-11-19 14:32:45,809 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4478 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:32:45,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4478 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:32:45,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25569 states. [2021-11-19 14:32:47,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25569 to 25569. [2021-11-19 14:32:47,871 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) [2021-11-19 14:32:48,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25569 states to 25569 states and 38426 transitions. [2021-11-19 14:32:48,065 INFO L78 Accepts]: Start accepts. Automaton has 25569 states and 38426 transitions. Word has length 490 [2021-11-19 14:32:48,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:32:48,067 INFO L470 AbstractCegarLoop]: Abstraction has 25569 states and 38426 transitions. [2021-11-19 14:32:48,067 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) [2021-11-19 14:32:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 25569 states and 38426 transitions. [2021-11-19 14:32:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-11-19 14:32:48,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:32:48,089 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] [2021-11-19 14:32:48,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:32:48,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:32:48,303 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)] === [2021-11-19 14:32:48,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:32:48,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1526343553, now seen corresponding path program 1 times [2021-11-19 14:32:48,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:32:48,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716990640] [2021-11-19 14:32:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:48,308 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:32:48,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:32:48,309 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:32:48,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:32:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:54,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 3899 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:32:54,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:01,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6172 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6166 trivial. 0 not checked. [2021-11-19 14:33:01,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6172 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6166 trivial. 0 not checked. [2021-11-19 14:33:04,443 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:04,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716990640] [2021-11-19 14:33:04,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716990640] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:33:04,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:33:04,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:33:04,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976398881] [2021-11-19 14:33:04,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:04,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:33:04,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:04,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:33:04,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:33:04,446 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) [2021-11-19 14:33:06,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:06,172 INFO L93 Difference]: Finished difference Result 25575 states and 38431 transitions. [2021-11-19 14:33:06,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:33:06,173 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 [2021-11-19 14:33:06,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:06,352 INFO L225 Difference]: With dead ends: 25575 [2021-11-19 14:33:06,352 INFO L226 Difference]: Without dead ends: 25573 [2021-11-19 14:33:06,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 991 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:33:06,374 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:06,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4477 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:33:06,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25573 states. [2021-11-19 14:33:08,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25573 to 25573. [2021-11-19 14:33:08,338 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) [2021-11-19 14:33:08,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25573 states to 25573 states and 38429 transitions. [2021-11-19 14:33:08,464 INFO L78 Accepts]: Start accepts. Automaton has 25573 states and 38429 transitions. Word has length 495 [2021-11-19 14:33:08,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:08,465 INFO L470 AbstractCegarLoop]: Abstraction has 25573 states and 38429 transitions. [2021-11-19 14:33:08,466 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) [2021-11-19 14:33:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 25573 states and 38429 transitions. [2021-11-19 14:33:08,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-11-19 14:33:08,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:08,489 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] [2021-11-19 14:33:08,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:08,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:08,711 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)] === [2021-11-19 14:33:08,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:08,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1759547968, now seen corresponding path program 1 times [2021-11-19 14:33:08,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:08,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262285324] [2021-11-19 14:33:08,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:08,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:08,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:08,715 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:08,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:33:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:14,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 3906 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:33:14,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 6186 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6178 trivial. 0 not checked. [2021-11-19 14:33:21,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6186 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6178 trivial. 0 not checked. [2021-11-19 14:33:24,876 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:24,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262285324] [2021-11-19 14:33:24,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262285324] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:33:24,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:33:24,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:33:24,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682328291] [2021-11-19 14:33:24,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:24,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:33:24,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:24,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:33:24,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:33:24,879 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) [2021-11-19 14:33:26,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:26,716 INFO L93 Difference]: Finished difference Result 25579 states and 38434 transitions. [2021-11-19 14:33:26,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:33:26,717 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 [2021-11-19 14:33:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:26,918 INFO L225 Difference]: With dead ends: 25579 [2021-11-19 14:33:26,918 INFO L226 Difference]: Without dead ends: 25577 [2021-11-19 14:33:26,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1001 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:33:26,937 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4476 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:26,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4476 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:33:26,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25577 states. [2021-11-19 14:33:28,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25577 to 25577. [2021-11-19 14:33:28,790 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) [2021-11-19 14:33:28,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25577 states to 25577 states and 38432 transitions. [2021-11-19 14:33:28,926 INFO L78 Accepts]: Start accepts. Automaton has 25577 states and 38432 transitions. Word has length 500 [2021-11-19 14:33:28,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:28,928 INFO L470 AbstractCegarLoop]: Abstraction has 25577 states and 38432 transitions. [2021-11-19 14:33:28,928 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) [2021-11-19 14:33:28,928 INFO L276 IsEmpty]: Start isEmpty. Operand 25577 states and 38432 transitions. [2021-11-19 14:33:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2021-11-19 14:33:28,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:28,951 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] [2021-11-19 14:33:29,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:29,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:29,167 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)] === [2021-11-19 14:33:29,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:29,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1168440500, now seen corresponding path program 1 times [2021-11-19 14:33:29,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:29,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590172860] [2021-11-19 14:33:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:29,171 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:29,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:29,172 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:29,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:33:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:35,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 3961 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:33:35,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 6069 trivial. 0 not checked. [2021-11-19 14:33:36,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:37,241 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6200 trivial. 0 not checked. [2021-11-19 14:33:37,241 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:37,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590172860] [2021-11-19 14:33:37,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590172860] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:33:37,242 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:33:37,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:33:37,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866959406] [2021-11-19 14:33:37,242 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:37,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:33:37,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:37,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:33:37,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:33:37,245 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) [2021-11-19 14:33:39,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:02,747 INFO L93 Difference]: Finished difference Result 59609 states and 89540 transitions. [2021-11-19 14:34:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:34:02,748 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 [2021-11-19 14:34:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:02,968 INFO L225 Difference]: With dead ends: 59609 [2021-11-19 14:34:02,969 INFO L226 Difference]: Without dead ends: 42505 [2021-11-19 14:34:03,077 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 [2021-11-19 14:34:03,078 INFO L933 BasicCegarLoop]: 10092 mSDtfsCounter, 8807 mSDsluCounter, 7917 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8807 SdHoareTripleChecker+Valid, 18009 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:03,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8807 Valid, 18009 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2356 Invalid, 1 Unknown, 0 Unchecked, 22.4s Time] [2021-11-19 14:34:03,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42505 states. [2021-11-19 14:34:06,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42505 to 42459. [2021-11-19 14:34:06,535 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) [2021-11-19 14:34:06,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42459 states to 42459 states and 63796 transitions. [2021-11-19 14:34:06,750 INFO L78 Accepts]: Start accepts. Automaton has 42459 states and 63796 transitions. Word has length 517 [2021-11-19 14:34:06,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:06,751 INFO L470 AbstractCegarLoop]: Abstraction has 42459 states and 63796 transitions. [2021-11-19 14:34:06,751 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) [2021-11-19 14:34:06,751 INFO L276 IsEmpty]: Start isEmpty. Operand 42459 states and 63796 transitions. [2021-11-19 14:34:06,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-11-19 14:34:06,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:06,768 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] [2021-11-19 14:34:06,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 14:34:06,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:06,969 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)] === [2021-11-19 14:34:06,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:06,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1111289633, now seen corresponding path program 1 times [2021-11-19 14:34:06,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:06,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235987833] [2021-11-19 14:34:06,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:06,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:06,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:06,974 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:06,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:34:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:13,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 3913 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:13,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 6204 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6194 trivial. 0 not checked. [2021-11-19 14:34:21,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:24,891 INFO L134 CoverageAnalysis]: Checked inductivity of 6204 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6194 trivial. 0 not checked. [2021-11-19 14:34:24,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:24,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235987833] [2021-11-19 14:34:24,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235987833] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:34:24,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:34:24,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:34:24,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038822821] [2021-11-19 14:34:24,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:24,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:24,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:24,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:24,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:34:24,895 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) [2021-11-19 14:34:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:27,963 INFO L93 Difference]: Finished difference Result 42465 states and 63801 transitions. [2021-11-19 14:34:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:34:27,963 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 [2021-11-19 14:34:27,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:28,300 INFO L225 Difference]: With dead ends: 42465 [2021-11-19 14:34:28,301 INFO L226 Difference]: Without dead ends: 42463 [2021-11-19 14:34:28,328 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 [2021-11-19 14:34:28,329 INFO L933 BasicCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4475 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:28,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4475 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:34:28,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42463 states. [2021-11-19 14:34:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42463 to 42463. [2021-11-19 14:34:32,130 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) [2021-11-19 14:34:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42463 states to 42463 states and 63799 transitions. [2021-11-19 14:34:32,380 INFO L78 Accepts]: Start accepts. Automaton has 42463 states and 63799 transitions. Word has length 505 [2021-11-19 14:34:32,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:32,380 INFO L470 AbstractCegarLoop]: Abstraction has 42463 states and 63799 transitions. [2021-11-19 14:34:32,380 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) [2021-11-19 14:34:32,381 INFO L276 IsEmpty]: Start isEmpty. Operand 42463 states and 63799 transitions. [2021-11-19 14:34:32,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2021-11-19 14:34:32,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:32,610 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] [2021-11-19 14:34:32,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:32,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:32,811 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)] === [2021-11-19 14:34:32,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:32,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2139152220, now seen corresponding path program 1 times [2021-11-19 14:34:32,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:32,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625463400] [2021-11-19 14:34:32,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:32,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:32,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:32,817 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:32,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:34:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:38,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 3967 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:34:38,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 6091 trivial. 0 not checked. [2021-11-19 14:34:40,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:41,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6220 trivial. 0 not checked. [2021-11-19 14:34:41,424 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:41,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625463400] [2021-11-19 14:34:41,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625463400] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:41,425 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:41,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:34:41,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213503584] [2021-11-19 14:34:41,425 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:41,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:34:41,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:41,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:34:41,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:34:41,427 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) [2021-11-19 14:34:43,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:35:12,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:12,787 INFO L93 Difference]: Finished difference Result 84962 states and 127599 transitions. [2021-11-19 14:35:12,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:12,788 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 [2021-11-19 14:35:12,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:13,267 INFO L225 Difference]: With dead ends: 84962 [2021-11-19 14:35:13,278 INFO L226 Difference]: Without dead ends: 50972 [2021-11-19 14:35:13,531 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 [2021-11-19 14:35:13,532 INFO L933 BasicCegarLoop]: 10086 mSDtfsCounter, 8955 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 1169 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8955 SdHoareTripleChecker+Valid, 16653 SdHoareTripleChecker+Invalid, 3597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1169 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:13,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8955 Valid, 16653 Invalid, 3597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1169 Valid, 2427 Invalid, 1 Unknown, 0 Unchecked, 27.1s Time] [2021-11-19 14:35:13,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50972 states. [2021-11-19 14:35:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50972 to 50880. [2021-11-19 14:35:17,897 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) [2021-11-19 14:35:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50880 states to 50880 states and 76439 transitions. [2021-11-19 14:35:18,227 INFO L78 Accepts]: Start accepts. Automaton has 50880 states and 76439 transitions. Word has length 521 [2021-11-19 14:35:18,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:18,228 INFO L470 AbstractCegarLoop]: Abstraction has 50880 states and 76439 transitions. [2021-11-19 14:35:18,229 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) [2021-11-19 14:35:18,229 INFO L276 IsEmpty]: Start isEmpty. Operand 50880 states and 76439 transitions. [2021-11-19 14:35:18,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-11-19 14:35:18,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:18,243 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] [2021-11-19 14:35:18,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:18,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:18,447 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)] === [2021-11-19 14:35:18,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:18,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1611620128, now seen corresponding path program 1 times [2021-11-19 14:35:18,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:18,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915862864] [2021-11-19 14:35:18,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:18,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:18,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:18,452 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:18,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:35:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:24,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 3920 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:24,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6226 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6214 trivial. 0 not checked. [2021-11-19 14:35:33,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 6226 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6214 trivial. 0 not checked. [2021-11-19 14:35:36,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:36,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915862864] [2021-11-19 14:35:36,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915862864] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:35:36,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:35:36,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:35:36,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503373222] [2021-11-19 14:35:36,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:36,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:36,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:36,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:36,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:35:36,060 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) [2021-11-19 14:35:39,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:39,825 INFO L93 Difference]: Finished difference Result 51852 states and 77440 transitions. [2021-11-19 14:35:39,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:35:39,825 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 [2021-11-19 14:35:39,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:40,081 INFO L225 Difference]: With dead ends: 51852 [2021-11-19 14:35:40,081 INFO L226 Difference]: Without dead ends: 51850 [2021-11-19 14:35:40,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1013 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:35:40,108 INFO L933 BasicCegarLoop]: 4604 mSDtfsCounter, 4257 mSDsluCounter, 9555 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4262 SdHoareTripleChecker+Valid, 14159 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:40,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4262 Valid, 14159 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:35:40,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51850 states. [2021-11-19 14:35:45,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51850 to 51850. [2021-11-19 14:35:45,332 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) [2021-11-19 14:35:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51850 states to 51850 states and 77438 transitions. [2021-11-19 14:35:45,749 INFO L78 Accepts]: Start accepts. Automaton has 51850 states and 77438 transitions. Word has length 510 [2021-11-19 14:35:45,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:45,750 INFO L470 AbstractCegarLoop]: Abstraction has 51850 states and 77438 transitions. [2021-11-19 14:35:45,750 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) [2021-11-19 14:35:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand 51850 states and 77438 transitions. [2021-11-19 14:35:45,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2021-11-19 14:35:45,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:45,775 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] [2021-11-19 14:35:45,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-19 14:35:45,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:45,986 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)] === [2021-11-19 14:35:45,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash -846266049, now seen corresponding path program 1 times [2021-11-19 14:35:45,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:45,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269897364] [2021-11-19 14:35:45,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:45,992 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:45,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:45,993 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:46,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a476dd-837e-45b2-9804-42636a39dafc/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process