./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V --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 57970899ca10de02cc3a4434b3e2b7041d723fc550c3fb62d1c86f37c18186c5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:39:48,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:39:48,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:39:48,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:39:48,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:39:48,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:39:48,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:39:48,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:39:48,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:39:48,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:39:48,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:39:48,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:39:48,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:39:48,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:39:48,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:39:48,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:39:48,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:39:48,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:39:48,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:39:48,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:39:48,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:39:48,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:39:48,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:39:48,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:39:48,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:39:48,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:39:48,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:39:48,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:39:48,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:39:48,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:39:48,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:39:48,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:39:48,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:39:48,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:39:48,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:39:48,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:39:48,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:39:48,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:39:48,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:39:48,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:39:48,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:39:48,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:39:48,696 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:39:48,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:39:48,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:39:48,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:39:48,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:39:48,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:39:48,705 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:39:48,705 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:39:48,705 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:39:48,705 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:39:48,706 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:39:48,707 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:39:48,707 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:39:48,707 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:39:48,707 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:39:48,708 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:39:48,708 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:39:48,708 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:39:48,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:39:48,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:39:48,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:39:48,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:39:48,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:39:48,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:39:48,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:39:48,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:39:48,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:39:48,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:39:48,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:39:48,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:48,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:39:48,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:39:48,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:39:48,714 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:39:48,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:39:48,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:39:48,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:39:48,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:39:48,715 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_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57970899ca10de02cc3a4434b3e2b7041d723fc550c3fb62d1c86f37c18186c5 [2021-11-23 02:39:49,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:39:49,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:39:49,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:39:49,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:39:49,061 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:39:49,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2021-11-23 02:39:49,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/data/01b520ee5/e0884e5f99a54a00a959c60f83a59f79/FLAG02d98ca48 [2021-11-23 02:39:50,254 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:39:50,255 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2021-11-23 02:39:50,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/data/01b520ee5/e0884e5f99a54a00a959c60f83a59f79/FLAG02d98ca48 [2021-11-23 02:39:50,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/data/01b520ee5/e0884e5f99a54a00a959c60f83a59f79 [2021-11-23 02:39:50,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:39:50,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:39:50,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:50,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:39:50,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:39:50,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:50" (1/1) ... [2021-11-23 02:39:50,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30351a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:50, skipping insertion in model container [2021-11-23 02:39:50,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:50" (1/1) ... [2021-11-23 02:39:50,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:39:50,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:39:54,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539011,539024] [2021-11-23 02:39:54,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539177,539190] [2021-11-23 02:39:54,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539341,539354] [2021-11-23 02:39:54,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539506,539519] [2021-11-23 02:39:54,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:54,159 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:39:54,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539011,539024] [2021-11-23 02:39:54,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539177,539190] [2021-11-23 02:39:54,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539341,539354] [2021-11-23 02:39:54,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539506,539519] [2021-11-23 02:39:54,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:55,289 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:39:55,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55 WrapperNode [2021-11-23 02:39:55,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:55,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:55,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:39:55,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:39:55,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:55,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:55,765 INFO L137 Inliner]: procedures = 374, calls = 3972, calls flagged for inlining = 239, calls inlined = 225, statements flattened = 7966 [2021-11-23 02:39:55,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:55,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:39:55,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:39:55,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:39:55,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:55,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:55,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:55,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:56,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:56,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:56,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:56,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:39:56,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:39:56,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:39:56,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:39:56,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (1/1) ... [2021-11-23 02:39:56,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:56,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:56,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:39:56,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47bc24d4-8b43-4f35-a3d4-4412155ce9c8/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:39:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure dw2104_frontend_attach [2021-11-23 02:39:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2104_frontend_attach [2021-11-23 02:39:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_exit [2021-11-23 02:39:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_exit [2021-11-23 02:39:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure dw2104_i2c_transfer [2021-11-23 02:39:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2104_i2c_transfer [2021-11-23 02:39:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 02:39:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 02:39:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_13_4 [2021-11-23 02:39:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_13_4 [2021-11-23 02:39:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:39:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_init [2021-11-23 02:39:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_init [2021-11-23 02:39:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:39:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:39:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:39:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_i2c_transfer [2021-11-23 02:39:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_i2c_transfer [2021-11-23 02:39:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-23 02:39:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-23 02:39:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_adapdata [2021-11-23 02:39:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_adapdata [2021-11-23 02:39:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:39:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:39:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2021-11-23 02:39:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2021-11-23 02:39:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure rc_keydown [2021-11-23 02:39:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_keydown [2021-11-23 02:39:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_power_ctrl [2021-11-23 02:39:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_power_ctrl [2021-11-23 02:39:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-11-23 02:39:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-11-23 02:39:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_tuner_attach [2021-11-23 02:39:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_tuner_attach [2021-11-23 02:39:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure zl100313_frontend_attach [2021-11-23 02:39:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure zl100313_frontend_attach [2021-11-23 02:39:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_i2c_transfer [2021-11-23 02:39:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_i2c_transfer [2021-11-23 02:39:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:39:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dw2102_driver_exit_17_2 [2021-11-23 02:39:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dw2102_driver_exit_17_2 [2021-11-23 02:39:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:39:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:39:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:39:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-23 02:39:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-23 02:39:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:39:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:39:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-23 02:39:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-23 02:39:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_streaming_ctrl [2021-11-23 02:39:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_streaming_ctrl [2021-11-23 02:39:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-23 02:39:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-23 02:39:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:39:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:39:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_frontend_attach [2021-11-23 02:39:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_frontend_attach [2021-11-23 02:39:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 02:39:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 02:39:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_i2c_transfer [2021-11-23 02:39:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_i2c_transfer [2021-11-23 02:39:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:39:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:39:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:39:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 02:39:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 02:39:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_op_rw [2021-11-23 02:39:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_op_rw [2021-11-23 02:39:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:39:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_frontend_attach [2021-11-23 02:39:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_frontend_attach [2021-11-23 02:39:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:39:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:39:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_generic_rw [2021-11-23 02:39:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_generic_rw [2021-11-23 02:39:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:39:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-23 02:39:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-23 02:39:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_serit_i2c_transfer [2021-11-23 02:39:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_serit_i2c_transfer [2021-11-23 02:39:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:39:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:39:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-23 02:39:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-23 02:39:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-23 02:39:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-23 02:39:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure stv0299_writereg [2021-11-23 02:39:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure stv0299_writereg [2021-11-23 02:39:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure t220_frontend_attach [2021-11-23 02:39:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure t220_frontend_attach [2021-11-23 02:39:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:39:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:39:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-23 02:39:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-23 02:39:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:39:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_load_firmware [2021-11-23 02:39:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_load_firmware [2021-11-23 02:39:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_rc_query [2021-11-23 02:39:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_rc_query [2021-11-23 02:39:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure s6x0_i2c_transfer [2021-11-23 02:39:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure s6x0_i2c_transfer [2021-11-23 02:39:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-23 02:39:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-23 02:39:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:39:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_frontend_attach [2021-11-23 02:39:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_frontend_attach [2021-11-23 02:39:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:39:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:39:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:39:56,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:39:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:39:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 02:39:56,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 02:39:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:39:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:39:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:39:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_read_mac_address [2021-11-23 02:39:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_read_mac_address [2021-11-23 02:39:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_probe [2021-11-23 02:39:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_probe [2021-11-23 02:39:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:39:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:39:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_read_mac_address [2021-11-23 02:39:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_read_mac_address [2021-11-23 02:39:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~$Pointer$ [2021-11-23 02:39:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~$Pointer$ [2021-11-23 02:39:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-11-23 02:39:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-11-23 02:39:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:39:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:39:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_rc_query [2021-11-23 02:39:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_rc_query [2021-11-23 02:39:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-23 02:39:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-23 02:39:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_i2c_func [2021-11-23 02:39:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_i2c_func [2021-11-23 02:39:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:39:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:39:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure s6x0_read_mac_address [2021-11-23 02:39:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure s6x0_read_mac_address [2021-11-23 02:39:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:39:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:39:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:39:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_i2c_mutex_of_dvb_usb_device [2021-11-23 02:39:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_i2c_mutex_of_dvb_usb_device [2021-11-23 02:39:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:39:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:39:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-23 02:39:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-23 02:39:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_identify_state [2021-11-23 02:39:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_identify_state [2021-11-23 02:39:57,908 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:39:57,911 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:40:16,633 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:52:31,947 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:52:32,087 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:52:36,610 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:52:36,611 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:52:36,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:36 BoogieIcfgContainer [2021-11-23 02:52:36,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:52:36,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:52:36,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:52:36,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:52:36,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:39:50" (1/3) ... [2021-11-23 02:52:36,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26233107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:52:36, skipping insertion in model container [2021-11-23 02:52:36,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:55" (2/3) ... [2021-11-23 02:52:36,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26233107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:52:36, skipping insertion in model container [2021-11-23 02:52:36,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:36" (3/3) ... [2021-11-23 02:52:36,629 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2021-11-23 02:52:36,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:52:36,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-23 02:52:36,724 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:52:36,739 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 [2021-11-23 02:52:36,739 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 02:52:36,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 2103 states, 1380 states have (on average 1.3869565217391304) internal successors, (1914), 1411 states have internal predecessors, (1914), 653 states have call successors, (653), 68 states have call predecessors, (653), 67 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) [2021-11-23 02:52:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2021-11-23 02:52:36,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:52:36,911 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:52:36,912 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:52:36,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:52:36,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1382441658, now seen corresponding path program 1 times [2021-11-23 02:52:36,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:52:36,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408928455] [2021-11-23 02:52:36,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:52:36,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:52:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:52:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 43059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43059 trivial. 0 not checked. [2021-11-23 02:52:39,498 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:52:39,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408928455] [2021-11-23 02:52:39,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408928455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:52:39,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:52:39,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:52:39,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976038607] [2021-11-23 02:52:39,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:52:39,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:52:39,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:52:39,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:52:39,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:52:39,553 INFO L87 Difference]: Start difference. First operand has 2103 states, 1380 states have (on average 1.3869565217391304) internal successors, (1914), 1411 states have internal predecessors, (1914), 653 states have call successors, (653), 68 states have call predecessors, (653), 67 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) [2021-11-23 02:52:41,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:52:46,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:52:46,881 INFO L93 Difference]: Finished difference Result 5817 states and 9068 transitions. [2021-11-23 02:52:46,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:52:46,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) Word has length 1065 [2021-11-23 02:52:46,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:52:46,976 INFO L225 Difference]: With dead ends: 5817 [2021-11-23 02:52:46,977 INFO L226 Difference]: Without dead ends: 3913 [2021-11-23 02:52:47,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:52:47,020 INFO L933 BasicCegarLoop]: 3336 mSDtfsCounter, 2816 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:52:47,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2816 Valid, 6113 Invalid, 816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 804 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-23 02:52:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2021-11-23 02:52:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3909. [2021-11-23 02:52:47,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 2614 states have (on average 1.3982402448355011) internal successors, (3655), 2675 states have internal predecessors, (3655), 1162 states have call successors, (1162), 131 states have call predecessors, (1162), 130 states have return successors, (1158), 1158 states have call predecessors, (1158), 1158 states have call successors, (1158) [2021-11-23 02:52:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 5975 transitions. [2021-11-23 02:52:47,744 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 5975 transitions. Word has length 1065 [2021-11-23 02:52:47,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:52:47,753 INFO L470 AbstractCegarLoop]: Abstraction has 3909 states and 5975 transitions. [2021-11-23 02:52:47,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) [2021-11-23 02:52:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 5975 transitions. [2021-11-23 02:52:47,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2021-11-23 02:52:47,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:52:47,825 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:52:47,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:52:47,826 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:52:47,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:52:47,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1476955601, now seen corresponding path program 1 times [2021-11-23 02:52:47,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:52:47,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831858130] [2021-11-23 02:52:47,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:52:47,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:52:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:52:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-23 02:52:49,520 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:52:49,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831858130] [2021-11-23 02:52:49,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831858130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:52:49,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:52:49,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:52:49,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264969126] [2021-11-23 02:52:49,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:52:49,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:52:49,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:52:49,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:52:49,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:52:49,537 INFO L87 Difference]: Start difference. First operand 3909 states and 5975 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-23 02:52:51,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:52:57,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:52:57,076 INFO L93 Difference]: Finished difference Result 9401 states and 14366 transitions. [2021-11-23 02:52:57,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:52:57,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1070 [2021-11-23 02:52:57,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:52:57,148 INFO L225 Difference]: With dead ends: 9401 [2021-11-23 02:52:57,148 INFO L226 Difference]: Without dead ends: 5701 [2021-11-23 02:52:57,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:52:57,189 INFO L933 BasicCegarLoop]: 3331 mSDtfsCounter, 2783 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 6102 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:52:57,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2783 Valid, 6102 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 809 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-23 02:52:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2021-11-23 02:52:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 5682. [2021-11-23 02:52:57,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 3814 states have (on average 1.401415836392239) internal successors, (5345), 3908 states have internal predecessors, (5345), 1667 states have call successors, (1667), 199 states have call predecessors, (1667), 198 states have return successors, (1663), 1658 states have call predecessors, (1663), 1663 states have call successors, (1663) [2021-11-23 02:52:57,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 8675 transitions. [2021-11-23 02:52:57,574 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 8675 transitions. Word has length 1070 [2021-11-23 02:52:57,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:52:57,578 INFO L470 AbstractCegarLoop]: Abstraction has 5682 states and 8675 transitions. [2021-11-23 02:52:57,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-23 02:52:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 8675 transitions. [2021-11-23 02:52:57,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2021-11-23 02:52:57,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:52:57,597 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:52:57,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:52:57,598 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:52:57,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:52:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash 122745366, now seen corresponding path program 1 times [2021-11-23 02:52:57,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:52:57,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480711340] [2021-11-23 02:52:57,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:52:57,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:52:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:52:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-23 02:52:58,643 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:52:58,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480711340] [2021-11-23 02:52:58,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480711340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:52:58,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:52:58,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:52:58,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342723933] [2021-11-23 02:52:58,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:52:58,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:52:58,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:52:58,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:52:58,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:52:58,652 INFO L87 Difference]: Start difference. First operand 5682 states and 8675 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-23 02:53:00,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:53:06,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:53:06,490 INFO L93 Difference]: Finished difference Result 14720 states and 22471 transitions. [2021-11-23 02:53:06,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:53:06,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1069 [2021-11-23 02:53:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:53:06,596 INFO L225 Difference]: With dead ends: 14720 [2021-11-23 02:53:06,597 INFO L226 Difference]: Without dead ends: 9247 [2021-11-23 02:53:06,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:06,652 INFO L933 BasicCegarLoop]: 3372 mSDtfsCounter, 2784 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 6143 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:53:06,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 6143 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-23 02:53:06,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9247 states. [2021-11-23 02:53:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9247 to 9228. [2021-11-23 02:53:07,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9228 states, 6214 states have (on average 1.4040875442549083) internal successors, (8725), 6374 states have internal predecessors, (8725), 2677 states have call successors, (2677), 335 states have call predecessors, (2677), 334 states have return successors, (2673), 2658 states have call predecessors, (2673), 2673 states have call successors, (2673) [2021-11-23 02:53:07,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9228 states to 9228 states and 14075 transitions. [2021-11-23 02:53:07,243 INFO L78 Accepts]: Start accepts. Automaton has 9228 states and 14075 transitions. Word has length 1069 [2021-11-23 02:53:07,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:53:07,246 INFO L470 AbstractCegarLoop]: Abstraction has 9228 states and 14075 transitions. [2021-11-23 02:53:07,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-23 02:53:07,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9228 states and 14075 transitions. [2021-11-23 02:53:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2021-11-23 02:53:07,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:07,267 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:53:07,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:53:07,268 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:53:07,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:07,269 INFO L85 PathProgramCache]: Analyzing trace with hash -131291127, now seen corresponding path program 1 times [2021-11-23 02:53:07,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:53:07,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502759444] [2021-11-23 02:53:07,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:07,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:08,558 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-23 02:53:08,558 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:53:08,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502759444] [2021-11-23 02:53:08,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502759444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:53:08,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:53:08,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:53:08,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219585868] [2021-11-23 02:53:08,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:53:08,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:53:08,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:53:08,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:53:08,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:08,563 INFO L87 Difference]: Start difference. First operand 9228 states and 14075 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-23 02:53:10,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:53:16,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:53:16,125 INFO L93 Difference]: Finished difference Result 25320 states and 38614 transitions. [2021-11-23 02:53:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:53:16,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1071 [2021-11-23 02:53:16,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:53:16,315 INFO L225 Difference]: With dead ends: 25320 [2021-11-23 02:53:16,316 INFO L226 Difference]: Without dead ends: 16301 [2021-11-23 02:53:16,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:16,405 INFO L933 BasicCegarLoop]: 3433 mSDtfsCounter, 2785 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6206 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:53:16,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2785 Valid, 6206 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 837 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-23 02:53:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16301 states. [2021-11-23 02:53:17,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16301 to 16282. [2021-11-23 02:53:17,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16282 states, 10992 states have (on average 1.4055676855895196) internal successors, (15450), 11284 states have internal predecessors, (15450), 4681 states have call successors, (4681), 607 states have call predecessors, (4681), 606 states have return successors, (4677), 4642 states have call predecessors, (4677), 4677 states have call successors, (4677) [2021-11-23 02:53:17,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16282 states to 16282 states and 24808 transitions. [2021-11-23 02:53:17,456 INFO L78 Accepts]: Start accepts. Automaton has 16282 states and 24808 transitions. Word has length 1071 [2021-11-23 02:53:17,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:53:17,459 INFO L470 AbstractCegarLoop]: Abstraction has 16282 states and 24808 transitions. [2021-11-23 02:53:17,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-23 02:53:17,459 INFO L276 IsEmpty]: Start isEmpty. Operand 16282 states and 24808 transitions. [2021-11-23 02:53:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2021-11-23 02:53:17,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:17,480 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:53:17,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:53:17,481 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:53:17,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:17,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1738565183, now seen corresponding path program 1 times [2021-11-23 02:53:17,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:53:17,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136282880] [2021-11-23 02:53:17,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:17,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-23 02:53:18,657 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:53:18,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136282880] [2021-11-23 02:53:18,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136282880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:53:18,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:53:18,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:53:18,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844463997] [2021-11-23 02:53:18,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:53:18,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:53:18,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:53:18,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:53:18,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:18,662 INFO L87 Difference]: Start difference. First operand 16282 states and 24808 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-23 02:53:20,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:53:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:53:26,126 INFO L93 Difference]: Finished difference Result 46353 states and 70614 transitions. [2021-11-23 02:53:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:53:26,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1073 [2021-11-23 02:53:26,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:53:26,315 INFO L225 Difference]: With dead ends: 46353 [2021-11-23 02:53:26,315 INFO L226 Difference]: Without dead ends: 30280 [2021-11-23 02:53:26,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:26,406 INFO L933 BasicCegarLoop]: 3480 mSDtfsCounter, 2785 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6253 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:53:26,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2785 Valid, 6253 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 853 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 02:53:26,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30280 states. [2021-11-23 02:53:28,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30280 to 30261. [2021-11-23 02:53:28,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30261 states, 20467 states have (on average 1.4060194459373625) internal successors, (28777), 21023 states have internal predecessors, (28777), 8641 states have call successors, (8641), 1151 states have call predecessors, (8641), 1150 states have return successors, (8637), 8562 states have call predecessors, (8637), 8637 states have call successors, (8637) [2021-11-23 02:53:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30261 states to 30261 states and 46055 transitions. [2021-11-23 02:53:28,645 INFO L78 Accepts]: Start accepts. Automaton has 30261 states and 46055 transitions. Word has length 1073 [2021-11-23 02:53:28,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:53:28,647 INFO L470 AbstractCegarLoop]: Abstraction has 30261 states and 46055 transitions. [2021-11-23 02:53:28,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-23 02:53:28,648 INFO L276 IsEmpty]: Start isEmpty. Operand 30261 states and 46055 transitions. [2021-11-23 02:53:28,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2021-11-23 02:53:28,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:28,675 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:53:28,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:53:28,675 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:53:28,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:28,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1016460577, now seen corresponding path program 1 times [2021-11-23 02:53:28,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:53:28,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392550208] [2021-11-23 02:53:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:28,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-23 02:53:30,097 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:53:30,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392550208] [2021-11-23 02:53:30,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392550208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:53:30,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:53:30,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:53:30,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326527628] [2021-11-23 02:53:30,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:53:30,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:53:30,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:53:30,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:53:30,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:30,101 INFO L87 Difference]: Start difference. First operand 30261 states and 46055 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-23 02:53:32,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:53:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:53:38,071 INFO L93 Difference]: Finished difference Result 87924 states and 133771 transitions. [2021-11-23 02:53:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:53:38,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1072 [2021-11-23 02:53:38,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted.