./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-v2-dvb-usb-mxl111sf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI --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 c2ae5598eb8e855028fa92e7ae47f6d5aee7a22667905b541c24d1d907d5da2d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:23:58,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:23:58,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:23:58,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:23:58,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:23:58,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:23:58,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:23:58,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:23:58,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:23:58,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:23:58,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:23:58,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:23:58,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:23:58,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:23:58,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:23:58,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:23:58,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:23:58,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:23:58,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:23:58,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:23:58,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:23:58,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:23:58,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:23:58,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:23:58,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:23:58,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:23:58,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:23:58,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:23:58,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:23:58,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:23:58,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:23:58,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:23:58,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:23:58,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:23:58,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:23:58,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:23:58,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:23:58,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:23:58,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:23:58,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:23:58,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:23:58,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:23:58,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:23:58,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:23:58,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:23:58,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:23:58,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:23:58,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:23:58,270 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:23:58,270 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:23:58,270 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:23:58,271 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:23:58,272 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:23:58,272 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:23:58,272 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:23:58,273 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:23:58,273 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:23:58,273 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:23:58,273 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:23:58,274 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:23:58,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:23:58,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:23:58,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:23:58,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:23:58,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:23:58,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:23:58,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:23:58,277 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:23:58,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:23:58,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:23:58,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:23:58,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:23:58,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:23:58,279 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:23:58,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:23:58,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:23:58,280 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:23:58,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:23:58,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:23:58,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:23:58,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2ae5598eb8e855028fa92e7ae47f6d5aee7a22667905b541c24d1d907d5da2d [2022-11-03 02:23:58,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:23:58,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:23:58,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:23:58,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:23:58,634 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:23:58,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i [2022-11-03 02:23:58,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/data/63720a466/1cfe8b2e05fd4a65ba244b851f123047/FLAG9bc7d51d3 [2022-11-03 02:23:59,780 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:23:59,780 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i [2022-11-03 02:23:59,845 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/data/63720a466/1cfe8b2e05fd4a65ba244b851f123047/FLAG9bc7d51d3 [2022-11-03 02:24:00,130 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/data/63720a466/1cfe8b2e05fd4a65ba244b851f123047 [2022-11-03 02:24:00,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:24:00,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:24:00,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:24:00,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:24:00,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:24:00,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:24:00" (1/1) ... [2022-11-03 02:24:00,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a033c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:00, skipping insertion in model container [2022-11-03 02:24:00,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:24:00" (1/1) ... [2022-11-03 02:24:00,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:24:00,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:24:03,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[470671,470684] [2022-11-03 02:24:03,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[470837,470850] [2022-11-03 02:24:03,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[471001,471014] [2022-11-03 02:24:03,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[471166,471179] [2022-11-03 02:24:03,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:24:03,601 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:24:04,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[470671,470684] [2022-11-03 02:24:04,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[470837,470850] [2022-11-03 02:24:04,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[471001,471014] [2022-11-03 02:24:04,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i[471166,471179] [2022-11-03 02:24:04,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:24:04,481 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:24:04,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04 WrapperNode [2022-11-03 02:24:04,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:24:04,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:24:04,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:24:04,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:24:04,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:04,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:04,859 INFO L138 Inliner]: procedures = 313, calls = 4214, calls flagged for inlining = 171, calls inlined = 156, statements flattened = 7138 [2022-11-03 02:24:04,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:24:04,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:24:04,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:24:04,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:24:04,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:04,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:04,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:04,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:05,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:05,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:05,267 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:05,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:05,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:24:05,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:24:05,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:24:05,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:24:05,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (1/1) ... [2022-11-03 02:24:05,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:24:05,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:24:05,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:24:05,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0edfbe38-a5b1-4b7c-b850-97c900ca40c1/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:24:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_streaming_ctrl_mercury_mh [2022-11-03 02:24:05,439 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_streaming_ctrl_mercury_mh [2022-11-03 02:24:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_read_reg [2022-11-03 02:24:05,440 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_read_reg [2022-11-03 02:24:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_mercury [2022-11-03 02:24:05,440 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_mercury [2022-11-03 02:24:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:24:05,441 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:24:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mxl111sf_usb_driver_exit_11_2 [2022-11-03 02:24:05,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mxl111sf_usb_driver_exit_11_2 [2022-11-03 02:24:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:24:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:24:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:24:05,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:24:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-03 02:24:05,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-03 02:24:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:24:05,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:24:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_lg2160_frontend_attach [2022-11-03 02:24:05,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_lg2160_frontend_attach [2022-11-03 02:24:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_stop [2022-11-03 02:24:05,444 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_stop [2022-11-03 02:24:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_config_pin_mux_modes [2022-11-03 02:24:05,444 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_config_pin_mux_modes [2022-11-03 02:24:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_start [2022-11-03 02:24:05,445 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_start [2022-11-03 02:24:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_xfer [2022-11-03 02:24:05,445 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_xfer [2022-11-03 02:24:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2022-11-03 02:24:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2022-11-03 02:24:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_stream_config_isoc [2022-11-03 02:24:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_stream_config_isoc [2022-11-03 02:24:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_adap_fe_sleep [2022-11-03 02:24:05,447 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_adap_fe_sleep [2022-11-03 02:24:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_mh [2022-11-03 02:24:05,447 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_mh [2022-11-03 02:24:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_atsc [2022-11-03 02:24:05,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_atsc [2022-11-03 02:24:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ep6_streaming_ctrl [2022-11-03 02:24:05,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ep6_streaming_ctrl [2022-11-03 02:24:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_write_reg_mask [2022-11-03 02:24:05,449 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_write_reg_mask [2022-11-03 02:24:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure mxl1x1sf_soft_reset [2022-11-03 02:24:05,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl1x1sf_soft_reset [2022-11-03 02:24:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:24:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_stream_config_bulk [2022-11-03 02:24:05,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_stream_config_bulk [2022-11-03 02:24:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_init [2022-11-03 02:24:05,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_init [2022-11-03 02:24:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:24:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:24:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:24:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:24:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:24:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_init_tuner_demod [2022-11-03 02:24:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_init_tuner_demod [2022-11-03 02:24:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:24:05,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:24:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_adap_fe_init [2022-11-03 02:24:05,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_adap_fe_init [2022-11-03 02:24:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:24:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_bitbang_sendbyte [2022-11-03 02:24:05,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_bitbang_sendbyte [2022-11-03 02:24:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:24:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_lgdt3305_frontend_attach [2022-11-03 02:24:05,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_lgdt3305_frontend_attach [2022-11-03 02:24:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:24:05,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:24:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_check_status [2022-11-03 02:24:05,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_check_status [2022-11-03 02:24:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ep5_streaming_ctrl [2022-11-03 02:24:05,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ep5_streaming_ctrl [2022-11-03 02:24:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2022-11-03 02:24:05,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2022-11-03 02:24:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:24:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ctrl_msg [2022-11-03 02:24:05,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ctrl_msg [2022-11-03 02:24:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:24:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fe_lock_of_mxl111sf_state [2022-11-03 02:24:05,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fe_lock_of_mxl111sf_state [2022-11-03 02:24:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:24:05,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:24:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_dvbt [2022-11-03 02:24:05,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_dvbt [2022-11-03 02:24:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ep4_streaming_ctrl [2022-11-03 02:24:05,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ep4_streaming_ctrl [2022-11-03 02:24:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:24:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:24:05,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:24:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_set_gpio [2022-11-03 02:24:05,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_set_gpio [2022-11-03 02:24:05,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 02:24:05,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 02:24:05,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:24:05,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:24:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_lg2161_ep6_frontend_attach [2022-11-03 02:24:05,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_lg2161_ep6_frontend_attach [2022-11-03 02:24:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:24:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure mxl1x1sf_get_chip_info [2022-11-03 02:24:05,465 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl1x1sf_get_chip_info [2022-11-03 02:24:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_mercury_mh [2022-11-03 02:24:05,465 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_mercury_mh [2022-11-03 02:24:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_enable_usb_output [2022-11-03 02:24:05,466 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_enable_usb_output [2022-11-03 02:24:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-11-03 02:24:05,469 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-11-03 02:24:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_attach_tuner [2022-11-03 02:24:05,471 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_attach_tuner [2022-11-03 02:24:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:24:05,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:24:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_hw_set_gpio [2022-11-03 02:24:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_hw_set_gpio [2022-11-03 02:24:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:24:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:24:05,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:24:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:24:05,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:24:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:24:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure mxl1x1sf_set_device_mode [2022-11-03 02:24:05,481 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl1x1sf_set_device_mode [2022-11-03 02:24:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:24:05,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:24:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ctrl_program_regs [2022-11-03 02:24:05,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ctrl_program_regs [2022-11-03 02:24:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:24:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:24:05,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:24:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_gpio_mode_switch [2022-11-03 02:24:05,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_gpio_mode_switch [2022-11-03 02:24:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2022-11-03 02:24:05,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2022-11-03 02:24:05,483 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_write_reg [2022-11-03 02:24:05,483 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_write_reg [2022-11-03 02:24:05,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:24:05,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:24:05,483 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_func [2022-11-03 02:24:05,483 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_func [2022-11-03 02:24:05,484 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_ant_hunt [2022-11-03 02:24:05,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_ant_hunt [2022-11-03 02:24:05,484 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_set_ant_path [2022-11-03 02:24:05,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_set_ant_path [2022-11-03 02:24:05,484 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_init_port_expander [2022-11-03 02:24:05,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_init_port_expander [2022-11-03 02:24:05,484 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usbv2_disconnect [2022-11-03 02:24:05,485 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usbv2_disconnect [2022-11-03 02:24:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_frontend_attach_atsc_mh [2022-11-03 02:24:05,485 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_frontend_attach_atsc_mh [2022-11-03 02:24:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_attach_demod [2022-11-03 02:24:05,485 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_attach_demod [2022-11-03 02:24:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:24:05,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:24:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_send_data [2022-11-03 02:24:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_send_data [2022-11-03 02:24:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usbv2_resume [2022-11-03 02:24:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usbv2_resume [2022-11-03 02:24:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:24:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure mxl111sf_i2c_get_data [2022-11-03 02:24:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl111sf_i2c_get_data [2022-11-03 02:24:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:24:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:24:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:24:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:24:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usbv2_probe [2022-11-03 02:24:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usbv2_probe [2022-11-03 02:24:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure mxl1x1sf_top_master_ctrl [2022-11-03 02:24:05,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mxl1x1sf_top_master_ctrl [2022-11-03 02:24:06,724 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:24:06,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:24:07,092 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:24:31,092 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:24:31,455 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:24:35,981 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:24:35,982 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:24:35,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:24:35 BoogieIcfgContainer [2022-11-03 02:24:35,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:24:35,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:24:35,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:24:35,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:24:35,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:24:00" (1/3) ... [2022-11-03 02:24:35,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d8fd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:24:35, skipping insertion in model container [2022-11-03 02:24:35,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:04" (2/3) ... [2022-11-03 02:24:35,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d8fd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:24:35, skipping insertion in model container [2022-11-03 02:24:35,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:24:35" (3/3) ... [2022-11-03 02:24:35,997 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-v2-dvb-usb-mxl111sf.cil.i [2022-11-03 02:24:36,018 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:24:36,018 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 02:24:36,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:24:36,114 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29c8fa19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:24:36,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:24:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 1690 states, 1083 states have (on average 1.3822714681440442) internal successors, (1497), 1116 states have internal predecessors, (1497), 530 states have call successors, (530), 75 states have call predecessors, (530), 74 states have return successors, (523), 503 states have call predecessors, (523), 523 states have call successors, (523) [2022-11-03 02:24:36,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 02:24:36,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:36,189 INFO L195 NwaCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 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] [2022-11-03 02:24:36,190 INFO L420 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)] === [2022-11-03 02:24:36,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:36,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2127863428, now seen corresponding path program 1 times [2022-11-03 02:24:36,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:36,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725413712] [2022-11-03 02:24:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:36,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 9903 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9903 trivial. 0 not checked. [2022-11-03 02:24:37,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:37,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725413712] [2022-11-03 02:24:37,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725413712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:37,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:37,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:37,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868823322] [2022-11-03 02:24:37,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:37,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:37,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:38,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:38,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:38,010 INFO L87 Difference]: Start difference. First operand has 1690 states, 1083 states have (on average 1.3822714681440442) internal successors, (1497), 1116 states have internal predecessors, (1497), 530 states have call successors, (530), 75 states have call predecessors, (530), 74 states have return successors, (523), 503 states have call predecessors, (523), 523 states have call successors, (523) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-03 02:24:42,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:44,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:51,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:52,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:52,418 INFO L93 Difference]: Finished difference Result 4750 states and 7226 transitions. [2022-11-03 02:24:52,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:52,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 524 [2022-11-03 02:24:52,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:52,520 INFO L225 Difference]: With dead ends: 4750 [2022-11-03 02:24:52,521 INFO L226 Difference]: Without dead ends: 3150 [2022-11-03 02:24:52,542 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:24:52,546 INFO L413 NwaCegarLoop]: 2490 mSDtfsCounter, 2242 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 4506 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:52,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2253 Valid, 4506 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 995 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time] [2022-11-03 02:24:52,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2022-11-03 02:24:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3144. [2022-11-03 02:24:52,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 2044 states have (on average 1.3864970645792563) internal successors, (2834), 2110 states have internal predecessors, (2834), 954 states have call successors, (954), 144 states have call predecessors, (954), 143 states have return successors, (955), 909 states have call predecessors, (955), 950 states have call successors, (955) [2022-11-03 02:24:52,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 4743 transitions. [2022-11-03 02:24:52,865 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 4743 transitions. Word has length 524 [2022-11-03 02:24:52,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:52,868 INFO L495 AbstractCegarLoop]: Abstraction has 3144 states and 4743 transitions. [2022-11-03 02:24:52,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-03 02:24:52,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 4743 transitions. [2022-11-03 02:24:52,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2022-11-03 02:24:52,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:52,885 INFO L195 NwaCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:52,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:24:52,886 INFO L420 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)] === [2022-11-03 02:24:52,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:52,887 INFO L85 PathProgramCache]: Analyzing trace with hash 285612523, now seen corresponding path program 1 times [2022-11-03 02:24:52,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:52,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070476246] [2022-11-03 02:24:52,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:52,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:53,815 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2022-11-03 02:24:53,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:53,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070476246] [2022-11-03 02:24:53,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070476246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:53,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:53,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:53,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338902768] [2022-11-03 02:24:53,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:53,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:53,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:53,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:53,827 INFO L87 Difference]: Start difference. First operand 3144 states and 4743 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:24:58,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:00,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:09,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:09,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:09,844 INFO L93 Difference]: Finished difference Result 7660 states and 11545 transitions. [2022-11-03 02:25:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:09,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 522 [2022-11-03 02:25:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:09,888 INFO L225 Difference]: With dead ends: 7660 [2022-11-03 02:25:09,888 INFO L226 Difference]: Without dead ends: 4617 [2022-11-03 02:25:09,910 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:25:09,911 INFO L413 NwaCegarLoop]: 2483 mSDtfsCounter, 2226 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 4498 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:09,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 4498 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 995 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2022-11-03 02:25:09,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4617 states. [2022-11-03 02:25:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4617 to 4595. [2022-11-03 02:25:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4595 states, 2996 states have (on average 1.3871829105473965) internal successors, (4156), 3096 states have internal predecessors, (4156), 1379 states have call successors, (1379), 218 states have call predecessors, (1379), 217 states have return successors, (1385), 1310 states have call predecessors, (1385), 1375 states have call successors, (1385) [2022-11-03 02:25:10,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4595 states to 4595 states and 6920 transitions. [2022-11-03 02:25:10,157 INFO L78 Accepts]: Start accepts. Automaton has 4595 states and 6920 transitions. Word has length 522 [2022-11-03 02:25:10,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:10,163 INFO L495 AbstractCegarLoop]: Abstraction has 4595 states and 6920 transitions. [2022-11-03 02:25:10,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:25:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 4595 states and 6920 transitions. [2022-11-03 02:25:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2022-11-03 02:25:10,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:10,180 INFO L195 NwaCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:10,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:25:10,181 INFO L420 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)] === [2022-11-03 02:25:10,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:10,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1095434502, now seen corresponding path program 1 times [2022-11-03 02:25:10,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:10,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314938696] [2022-11-03 02:25:10,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:10,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:10,978 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2022-11-03 02:25:10,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:10,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314938696] [2022-11-03 02:25:10,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314938696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:10,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:10,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:25:10,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68854868] [2022-11-03 02:25:10,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:10,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:25:10,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:25:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:25:10,984 INFO L87 Difference]: Start difference. First operand 4595 states and 6920 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:25:14,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:16,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:24,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:24,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:24,992 INFO L93 Difference]: Finished difference Result 11956 states and 17976 transitions. [2022-11-03 02:25:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:24,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 523 [2022-11-03 02:25:24,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:25,052 INFO L225 Difference]: With dead ends: 11956 [2022-11-03 02:25:25,052 INFO L226 Difference]: Without dead ends: 7462 [2022-11-03 02:25:25,078 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:25:25,079 INFO L413 NwaCegarLoop]: 2498 mSDtfsCounter, 2191 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 4513 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:25,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 4513 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1006 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2022-11-03 02:25:25,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7462 states. [2022-11-03 02:25:25,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7462 to 7440. [2022-11-03 02:25:25,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7440 states, 4864 states have (on average 1.3856907894736843) internal successors, (6740), 5017 states have internal predecessors, (6740), 2208 states have call successors, (2208), 366 states have call predecessors, (2208), 365 states have return successors, (2221), 2103 states have call predecessors, (2221), 2204 states have call successors, (2221) [2022-11-03 02:25:25,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7440 states to 7440 states and 11169 transitions. [2022-11-03 02:25:25,493 INFO L78 Accepts]: Start accepts. Automaton has 7440 states and 11169 transitions. Word has length 523 [2022-11-03 02:25:25,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:25,495 INFO L495 AbstractCegarLoop]: Abstraction has 7440 states and 11169 transitions. [2022-11-03 02:25:25,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:25:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 7440 states and 11169 transitions. [2022-11-03 02:25:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 02:25:25,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:25,511 INFO L195 NwaCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:25,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:25:25,512 INFO L420 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)] === [2022-11-03 02:25:25,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:25,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1525596905, now seen corresponding path program 1 times [2022-11-03 02:25:25,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:25,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243234743] [2022-11-03 02:25:25,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:25,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:26,252 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2022-11-03 02:25:26,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:26,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243234743] [2022-11-03 02:25:26,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243234743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:26,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:26,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:25:26,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997444249] [2022-11-03 02:25:26,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:26,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:25:26,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:26,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:25:26,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:25:26,256 INFO L87 Difference]: Start difference. First operand 7440 states and 11169 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:25:30,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:32,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:40,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:41,316 INFO L93 Difference]: Finished difference Result 20535 states and 30816 transitions. [2022-11-03 02:25:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 524 [2022-11-03 02:25:41,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:41,437 INFO L225 Difference]: With dead ends: 20535 [2022-11-03 02:25:41,437 INFO L226 Difference]: Without dead ends: 13196 [2022-11-03 02:25:41,495 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:25:41,496 INFO L413 NwaCegarLoop]: 2568 mSDtfsCounter, 2224 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 4583 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:41,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 4583 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1024 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2022-11-03 02:25:41,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13196 states. [2022-11-03 02:25:42,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13196 to 13174. [2022-11-03 02:25:42,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13174 states, 8629 states have (on average 1.3856762081353575) internal successors, (11957), 8907 states have internal predecessors, (11957), 3881 states have call successors, (3881), 662 states have call predecessors, (3881), 661 states have return successors, (3912), 3689 states have call predecessors, (3912), 3877 states have call successors, (3912) [2022-11-03 02:25:42,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13174 states to 13174 states and 19750 transitions. [2022-11-03 02:25:42,225 INFO L78 Accepts]: Start accepts. Automaton has 13174 states and 19750 transitions. Word has length 524 [2022-11-03 02:25:42,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:42,226 INFO L495 AbstractCegarLoop]: Abstraction has 13174 states and 19750 transitions. [2022-11-03 02:25:42,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:25:42,227 INFO L276 IsEmpty]: Start isEmpty. Operand 13174 states and 19750 transitions. [2022-11-03 02:25:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-11-03 02:25:42,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:42,232 INFO L195 NwaCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:42,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:25:42,233 INFO L420 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)] === [2022-11-03 02:25:42,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:42,234 INFO L85 PathProgramCache]: Analyzing trace with hash 675477062, now seen corresponding path program 1 times [2022-11-03 02:25:42,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:42,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898982041] [2022-11-03 02:25:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:42,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2022-11-03 02:25:43,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:43,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898982041] [2022-11-03 02:25:43,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898982041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:43,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:43,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:25:43,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113251032] [2022-11-03 02:25:43,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:43,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:25:43,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:43,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:25:43,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:25:43,130 INFO L87 Difference]: Start difference. First operand 13174 states and 19750 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:25:46,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:49,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:56,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:57,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:57,295 INFO L93 Difference]: Finished difference Result 37407 states and 55976 transitions. [2022-11-03 02:25:57,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:57,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 525 [2022-11-03 02:25:57,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:57,441 INFO L225 Difference]: With dead ends: 37407 [2022-11-03 02:25:57,441 INFO L226 Difference]: Without dead ends: 24334 [2022-11-03 02:25:57,508 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:25:57,515 INFO L413 NwaCegarLoop]: 2589 mSDtfsCounter, 2176 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2186 SdHoareTripleChecker+Valid, 4604 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:57,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2186 Valid, 4604 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1038 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2022-11-03 02:25:57,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24334 states. [2022-11-03 02:25:58,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24334 to 24312. [2022-11-03 02:25:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24312 states, 15958 states have (on average 1.3820654217320467) internal successors, (22055), 16420 states have internal predecessors, (22055), 7098 states have call successors, (7098), 1254 states have call predecessors, (7098), 1253 states have return successors, (7156), 6789 states have call predecessors, (7156), 7094 states have call successors, (7156) [2022-11-03 02:25:58,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24312 states to 24312 states and 36309 transitions. [2022-11-03 02:25:58,888 INFO L78 Accepts]: Start accepts. Automaton has 24312 states and 36309 transitions. Word has length 525 [2022-11-03 02:25:58,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:58,889 INFO L495 AbstractCegarLoop]: Abstraction has 24312 states and 36309 transitions. [2022-11-03 02:25:58,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:25:58,889 INFO L276 IsEmpty]: Start isEmpty. Operand 24312 states and 36309 transitions. [2022-11-03 02:25:58,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-11-03 02:25:58,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:58,896 INFO L195 NwaCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:58,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:25:58,896 INFO L420 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)] === [2022-11-03 02:25:58,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:58,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2128477743, now seen corresponding path program 1 times [2022-11-03 02:25:58,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:58,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048031913] [2022-11-03 02:25:58,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:58,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:59,594 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2022-11-03 02:25:59,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:59,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048031913] [2022-11-03 02:25:59,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048031913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:59,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:59,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:25:59,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489623949] [2022-11-03 02:25:59,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:59,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:25:59,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:59,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:25:59,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:25:59,598 INFO L87 Difference]: Start difference. First operand 24312 states and 36309 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:26:03,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:05,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:14,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:15,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:15,736 INFO L93 Difference]: Finished difference Result 70704 states and 105468 transitions. [2022-11-03 02:26:15,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:26:15,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 526 [2022-11-03 02:26:15,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:16,019 INFO L225 Difference]: With dead ends: 70704 [2022-11-03 02:26:16,020 INFO L226 Difference]: Without dead ends: 46493 [2022-11-03 02:26:16,150 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:26:16,152 INFO L413 NwaCegarLoop]: 2661 mSDtfsCounter, 2204 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:16,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 4676 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1053 Invalid, 3 Unknown, 0 Unchecked, 14.5s Time] [2022-11-03 02:26:16,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46493 states. [2022-11-03 02:26:18,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46493 to 46471. [2022-11-03 02:26:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46471 states, 30558 states have (on average 1.3788206034426336) internal successors, (42134), 31366 states have internal predecessors, (42134), 13473 states have call successors, (13473), 2438 states have call predecessors, (13473), 2437 states have return successors, (13595), 12945 states have call predecessors, (13595), 13469 states have call successors, (13595) [2022-11-03 02:26:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46471 states to 46471 states and 69202 transitions. [2022-11-03 02:26:18,580 INFO L78 Accepts]: Start accepts. Automaton has 46471 states and 69202 transitions. Word has length 526 [2022-11-03 02:26:18,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:18,581 INFO L495 AbstractCegarLoop]: Abstraction has 46471 states and 69202 transitions. [2022-11-03 02:26:18,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:26:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 46471 states and 69202 transitions. [2022-11-03 02:26:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-11-03 02:26:18,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:18,588 INFO L195 NwaCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:18,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:26:18,588 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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)] === [2022-11-03 02:26:18,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:18,589 INFO L85 PathProgramCache]: Analyzing trace with hash 535309936, now seen corresponding path program 1 times [2022-11-03 02:26:18,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:18,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924728163] [2022-11-03 02:26:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:18,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2022-11-03 02:26:19,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:19,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924728163] [2022-11-03 02:26:19,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924728163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:19,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:19,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:26:19,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563865205] [2022-11-03 02:26:19,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:19,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:26:19,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:19,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:26:19,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:19,255 INFO L87 Difference]: Start difference. First operand 46471 states and 69202 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:26:22,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:27,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:29,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:37,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:38,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:38,925 INFO L93 Difference]: Finished difference Result 135916 states and 202281 transitions. [2022-11-03 02:26:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:26:38,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 527 [2022-11-03 02:26:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:39,831 INFO L225 Difference]: With dead ends: 135916 [2022-11-03 02:26:39,831 INFO L226 Difference]: Without dead ends: 89546 [2022-11-03 02:26:40,120 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:26:40,121 INFO L413 NwaCegarLoop]: 2968 mSDtfsCounter, 2221 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 4983 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:40,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2232 Valid, 4983 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1196 Invalid, 3 Unknown, 0 Unchecked, 16.6s Time] [2022-11-03 02:26:40,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89546 states. [2022-11-03 02:26:44,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89546 to 89524. [2022-11-03 02:26:44,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89524 states, 58932 states have (on average 1.376858073712075) internal successors, (81141), 60502 states have internal predecessors, (81141), 25834 states have call successors, (25834), 4756 states have call predecessors, (25834), 4755 states have return successors, (26067), 24816 states have call predecessors, (26067), 25830 states have call successors, (26067) [2022-11-03 02:26:45,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89524 states to 89524 states and 133042 transitions. [2022-11-03 02:26:45,397 INFO L78 Accepts]: Start accepts. Automaton has 89524 states and 133042 transitions. Word has length 527 [2022-11-03 02:26:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:45,398 INFO L495 AbstractCegarLoop]: Abstraction has 89524 states and 133042 transitions. [2022-11-03 02:26:45,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-03 02:26:45,398 INFO L276 IsEmpty]: Start isEmpty. Operand 89524 states and 133042 transitions. [2022-11-03 02:26:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-11-03 02:26:45,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:45,405 INFO L195 NwaCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:45,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:26:45,406 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2022-11-03 02:26:45,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:45,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1978257038, now seen corresponding path program 1 times [2022-11-03 02:26:45,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:45,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956134433] [2022-11-03 02:26:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:45,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9900 trivial. 0 not checked. [2022-11-03 02:26:46,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:46,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956134433] [2022-11-03 02:26:46,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956134433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:46,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:46,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:26:46,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059350996] [2022-11-03 02:26:46,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:46,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:26:46,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:46,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:26:46,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:46,652 INFO L87 Difference]: Start difference. First operand 89524 states and 133042 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-03 02:26:50,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:56,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:59,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:08,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:10,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:10,168 INFO L93 Difference]: Finished difference Result 252547 states and 375581 transitions. [2022-11-03 02:27:10,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:27:10,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 547 [2022-11-03 02:27:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:11,646 INFO L225 Difference]: With dead ends: 252547 [2022-11-03 02:27:11,646 INFO L226 Difference]: Without dead ends: 163124 [2022-11-03 02:27:12,057 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:27:12,057 INFO L413 NwaCegarLoop]: 2920 mSDtfsCounter, 2078 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 4929 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:12,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2084 Valid, 4929 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1144 Invalid, 2 Unknown, 0 Unchecked, 17.3s Time] [2022-11-03 02:27:12,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163124 states. [2022-11-03 02:27:19,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163124 to 162975. [2022-11-03 02:27:20,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162975 states, 107971 states have (on average 1.3783701179020293) internal successors, (148824), 111091 states have internal predecessors, (148824), 46298 states have call successors, (46298), 8704 states have call predecessors, (46298), 8703 states have return successors, (46703), 44133 states have call predecessors, (46703), 46294 states have call successors, (46703) [2022-11-03 02:27:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162975 states to 162975 states and 241825 transitions. [2022-11-03 02:27:21,427 INFO L78 Accepts]: Start accepts. Automaton has 162975 states and 241825 transitions. Word has length 547 [2022-11-03 02:27:21,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:21,428 INFO L495 AbstractCegarLoop]: Abstraction has 162975 states and 241825 transitions. [2022-11-03 02:27:21,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-03 02:27:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 162975 states and 241825 transitions. [2022-11-03 02:27:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2022-11-03 02:27:21,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:21,438 INFO L195 NwaCegarLoop]: trace histogram [54, 50, 50, 50, 50, 50, 50, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:27:21,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:27:21,439 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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)] === [2022-11-03 02:27:21,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:21,439 INFO L85 PathProgramCache]: Analyzing trace with hash 911380336, now seen corresponding path program 1 times [2022-11-03 02:27:21,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:21,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969307230] [2022-11-03 02:27:21,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:21,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 10246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10246 trivial. 0 not checked. [2022-11-03 02:27:24,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:24,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969307230] [2022-11-03 02:27:24,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969307230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:24,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:27:24,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:27:24,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029110020] [2022-11-03 02:27:24,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:24,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:27:24,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:24,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:27:24,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:27:24,577 INFO L87 Difference]: Start difference. First operand 162975 states and 241825 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-03 02:27:28,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []