./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-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba --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 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 --- 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-b5237d8 [2022-11-22 02:32:51,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:32:51,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:32:51,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:32:51,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:32:51,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:32:51,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:32:51,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:32:51,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:32:51,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:32:51,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:32:51,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:32:51,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:32:51,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:32:51,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:32:51,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:32:51,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:32:51,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:32:51,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:32:51,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:32:51,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:32:51,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:32:51,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:32:51,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:32:51,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:32:51,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:32:51,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:32:51,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:32:51,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:32:51,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:32:51,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:32:51,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:32:51,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:32:51,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:32:51,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:32:51,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:32:51,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:32:51,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:32:51,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:32:51,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:32:51,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:32:51,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:32:51,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:32:51,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:32:51,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:32:51,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:32:51,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:32:51,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:32:51,239 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:32:51,239 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:32:51,239 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:32:51,239 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:32:51,240 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:32:51,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:32:51,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:32:51,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:32:51,241 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:32:51,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:32:51,241 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:32:51,242 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:32:51,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:32:51,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:32:51,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:32:51,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:32:51,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:32:51,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:32:51,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:32:51,243 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:32:51,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:32:51,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:32:51,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:32:51,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:32:51,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:32:51,245 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:32:51,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:32:51,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:32:51,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:32:51,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:32:51,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:32:51,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:32:51,246 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_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 [2022-11-22 02:32:51,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:32:51,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:32:51,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:32:51,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:32:51,616 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:32:51,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2022-11-22 02:32:54,618 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:32:55,279 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:32:55,280 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2022-11-22 02:32:55,336 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/data/9b992b7ec/5565f50f0a3c47ba9ab143572b4f7d70/FLAGe2ba681db [2022-11-22 02:32:55,355 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/data/9b992b7ec/5565f50f0a3c47ba9ab143572b4f7d70 [2022-11-22 02:32:55,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:32:55,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:32:55,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:32:55,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:32:55,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:32:55,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:32:55" (1/1) ... [2022-11-22 02:32:55,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137a8ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:55, skipping insertion in model container [2022-11-22 02:32:55,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:32:55" (1/1) ... [2022-11-22 02:32:55,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:32:55,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:32:58,866 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2022-11-22 02:32:58,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2022-11-22 02:32:58,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2022-11-22 02:32:58,872 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2022-11-22 02:32:58,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:32:58,999 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:32:59,579 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2022-11-22 02:32:59,580 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2022-11-22 02:32:59,581 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2022-11-22 02:32:59,581 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2022-11-22 02:32:59,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:32:59,836 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:32:59,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59 WrapperNode [2022-11-22 02:32:59,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:32:59,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:32:59,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:32:59,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:32:59,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:32:59,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,195 INFO L138 Inliner]: procedures = 410, calls = 4574, calls flagged for inlining = 226, calls inlined = 200, statements flattened = 9344 [2022-11-22 02:33:00,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:33:00,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:33:00,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:33:00,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:33:00,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,513 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:33:00,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:33:00,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:33:00,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:33:00,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (1/1) ... [2022-11-22 02:33:00,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:33:00,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:33:00,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:33:00,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c599866-6202-4c5d-a520-a72cac9bc505/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:33:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2022-11-22 02:33:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2022-11-22 02:33:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-22 02:33:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-22 02:33:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2022-11-22 02:33:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2022-11-22 02:33:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2022-11-22 02:33:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2022-11-22 02:33:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:33:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:33:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-22 02:33:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-22 02:33:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2022-11-22 02:33:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2022-11-22 02:33:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:33:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:33:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2022-11-22 02:33:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2022-11-22 02:33:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2022-11-22 02:33:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2022-11-22 02:33:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2022-11-22 02:33:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2022-11-22 02:33:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2022-11-22 02:33:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2022-11-22 02:33:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2022-11-22 02:33:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2022-11-22 02:33:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2022-11-22 02:33:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2022-11-22 02:33:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2022-11-22 02:33:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2022-11-22 02:33:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:33:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:33:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-22 02:33:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-22 02:33:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 02:33:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 02:33:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:33:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:33:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 02:33:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 02:33:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:33:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2022-11-22 02:33:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2022-11-22 02:33:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2022-11-22 02:33:00,660 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2022-11-22 02:33:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2022-11-22 02:33:00,660 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2022-11-22 02:33:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-22 02:33:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-22 02:33:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 02:33:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 02:33:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2022-11-22 02:33:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2022-11-22 02:33:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2022-11-22 02:33:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2022-11-22 02:33:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2022-11-22 02:33:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2022-11-22 02:33:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-22 02:33:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-22 02:33:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:33:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2022-11-22 02:33:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2022-11-22 02:33:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-11-22 02:33:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-11-22 02:33:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:33:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:33:00,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:33:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-22 02:33:00,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-22 02:33:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2022-11-22 02:33:00,666 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2022-11-22 02:33:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:33:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2022-11-22 02:33:00,666 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2022-11-22 02:33:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:33:00,667 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:33:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:33:00,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:33:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-22 02:33:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-22 02:33:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2022-11-22 02:33:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2022-11-22 02:33:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2022-11-22 02:33:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2022-11-22 02:33:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2022-11-22 02:33:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2022-11-22 02:33:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:33:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2022-11-22 02:33:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2022-11-22 02:33:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2022-11-22 02:33:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2022-11-22 02:33:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 02:33:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 02:33:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2022-11-22 02:33:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2022-11-22 02:33:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 02:33:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 02:33:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:33:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2022-11-22 02:33:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2022-11-22 02:33:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:33:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:33:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2022-11-22 02:33:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2022-11-22 02:33:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:33:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-22 02:33:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-22 02:33:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2022-11-22 02:33:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2022-11-22 02:33:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:33:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:33:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-11-22 02:33:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-11-22 02:33:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2022-11-22 02:33:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2022-11-22 02:33:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 02:33:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 02:33:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2022-11-22 02:33:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2022-11-22 02:33:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-22 02:33:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-22 02:33:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 02:33:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 02:33:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:33:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:33:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 02:33:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 02:33:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-22 02:33:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-22 02:33:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:33:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:33:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:33:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:33:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-22 02:33:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-22 02:33:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 02:33:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 02:33:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2022-11-22 02:33:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2022-11-22 02:33:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 02:33:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 02:33:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2022-11-22 02:33:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2022-11-22 02:33:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-22 02:33:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-22 02:33:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2022-11-22 02:33:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2022-11-22 02:33:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-11-22 02:33:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-11-22 02:33:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-11-22 02:33:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-11-22 02:33:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2022-11-22 02:33:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2022-11-22 02:33:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:33:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:33:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-22 02:33:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-22 02:33:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 02:33:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 02:33:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:33:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 02:33:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 02:33:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2022-11-22 02:33:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2022-11-22 02:33:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:33:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2022-11-22 02:33:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2022-11-22 02:33:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2022-11-22 02:33:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2022-11-22 02:33:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2022-11-22 02:33:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2022-11-22 02:33:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-22 02:33:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-22 02:33:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:33:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2022-11-22 02:33:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2022-11-22 02:33:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 02:33:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 02:33:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2022-11-22 02:33:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2022-11-22 02:33:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 02:33:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 02:33:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2022-11-22 02:33:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2022-11-22 02:33:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:33:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:33:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 02:33:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 02:33:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2022-11-22 02:33:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2022-11-22 02:33:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-22 02:33:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-22 02:33:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 02:33:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 02:33:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2022-11-22 02:33:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2022-11-22 02:33:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 02:33:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 02:33:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-22 02:33:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-22 02:33:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2022-11-22 02:33:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2022-11-22 02:33:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:33:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:33:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 02:33:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 02:33:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2022-11-22 02:33:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2022-11-22 02:33:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2022-11-22 02:33:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2022-11-22 02:33:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2022-11-22 02:33:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2022-11-22 02:33:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:33:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2022-11-22 02:33:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2022-11-22 02:33:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:33:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:33:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2022-11-22 02:33:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2022-11-22 02:33:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2022-11-22 02:33:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2022-11-22 02:33:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-22 02:33:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-22 02:33:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 02:33:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 02:33:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2022-11-22 02:33:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2022-11-22 02:33:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:33:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:33:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 02:33:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 02:33:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2022-11-22 02:33:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2022-11-22 02:33:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2022-11-22 02:33:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2022-11-22 02:33:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2022-11-22 02:33:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2022-11-22 02:33:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2022-11-22 02:33:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2022-11-22 02:33:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2022-11-22 02:33:00,797 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2022-11-22 02:33:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 02:33:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:33:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-22 02:33:00,803 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-22 02:33:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2022-11-22 02:33:00,803 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2022-11-22 02:33:00,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:33:00,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:33:02,097 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:33:02,101 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:33:02,495 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:33:22,954 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 02:33:23,316 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:33:25,258 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:33:25,258 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:33:25,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:25 BoogieIcfgContainer [2022-11-22 02:33:25,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:33:25,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:33:25,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:33:25,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:33:25,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:32:55" (1/3) ... [2022-11-22 02:33:25,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5802ea20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:25, skipping insertion in model container [2022-11-22 02:33:25,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:32:59" (2/3) ... [2022-11-22 02:33:25,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5802ea20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:25, skipping insertion in model container [2022-11-22 02:33:25,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:25" (3/3) ... [2022-11-22 02:33:25,275 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2022-11-22 02:33:25,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:33:25,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 02:33:25,406 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:33:25,415 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;@65f2d2e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:33:25,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 02:33:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 2034 states, 1236 states have (on average 1.3122977346278317) internal successors, (1622), 1240 states have internal predecessors, (1622), 680 states have call successors, (680), 116 states have call predecessors, (680), 115 states have return successors, (672), 672 states have call predecessors, (672), 672 states have call successors, (672) [2022-11-22 02:33:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-11-22 02:33:25,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:25,481 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 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] [2022-11-22 02:33:25,482 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:33:25,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:25,489 INFO L85 PathProgramCache]: Analyzing trace with hash 239694066, now seen corresponding path program 1 times [2022-11-22 02:33:25,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:25,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918480561] [2022-11-22 02:33:25,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:25,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5115 trivial. 0 not checked. [2022-11-22 02:33:27,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:27,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918480561] [2022-11-22 02:33:27,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918480561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:27,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:27,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:33:27,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463460754] [2022-11-22 02:33:27,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:27,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:33:27,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:27,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:33:27,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:33:27,220 INFO L87 Difference]: Start difference. First operand has 2034 states, 1236 states have (on average 1.3122977346278317) internal successors, (1622), 1240 states have internal predecessors, (1622), 680 states have call successors, (680), 116 states have call predecessors, (680), 115 states have return successors, (672), 672 states have call predecessors, (672), 672 states have call successors, (672) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 02:33:30,697 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 [] [2022-11-22 02:33:32,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:32,975 INFO L93 Difference]: Finished difference Result 5872 states and 8870 transitions. [2022-11-22 02:33:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:33:32,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 384 [2022-11-22 02:33:32,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:33,022 INFO L225 Difference]: With dead ends: 5872 [2022-11-22 02:33:33,022 INFO L226 Difference]: Without dead ends: 3899 [2022-11-22 02:33:33,042 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 [2022-11-22 02:33:33,045 INFO L413 NwaCegarLoop]: 3196 mSDtfsCounter, 2769 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 5680 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:33,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2769 Valid, 5680 Invalid, 923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 909 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 02:33:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3899 states. [2022-11-22 02:33:33,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3899 to 3895. [2022-11-22 02:33:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3895 states, 2388 states have (on average 1.3086264656616415) internal successors, (3125), 2395 states have internal predecessors, (3125), 1278 states have call successors, (1278), 227 states have call predecessors, (1278), 226 states have return successors, (1274), 1274 states have call predecessors, (1274), 1274 states have call successors, (1274) [2022-11-22 02:33:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3895 states to 3895 states and 5677 transitions. [2022-11-22 02:33:33,388 INFO L78 Accepts]: Start accepts. Automaton has 3895 states and 5677 transitions. Word has length 384 [2022-11-22 02:33:33,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:33,395 INFO L495 AbstractCegarLoop]: Abstraction has 3895 states and 5677 transitions. [2022-11-22 02:33:33,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 02:33:33,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3895 states and 5677 transitions. [2022-11-22 02:33:33,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-22 02:33:33,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:33,414 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:33:33,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:33:33,417 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:33:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:33,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1963858237, now seen corresponding path program 1 times [2022-11-22 02:33:33,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:33,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368137960] [2022-11-22 02:33:33,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:33,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-22 02:33:34,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:34,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368137960] [2022-11-22 02:33:34,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368137960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:34,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:34,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:33:34,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373857061] [2022-11-22 02:33:34,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:34,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:33:34,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:34,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:33:34,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:33:34,324 INFO L87 Difference]: Start difference. First operand 3895 states and 5677 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 02:33:37,898 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 [] [2022-11-22 02:33:40,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:40,577 INFO L93 Difference]: Finished difference Result 9562 states and 13915 transitions. [2022-11-22 02:33:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:33:40,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 404 [2022-11-22 02:33:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:40,626 INFO L225 Difference]: With dead ends: 9562 [2022-11-22 02:33:40,627 INFO L226 Difference]: Without dead ends: 5740 [2022-11-22 02:33:40,652 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 [2022-11-22 02:33:40,653 INFO L413 NwaCegarLoop]: 3176 mSDtfsCounter, 2726 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2726 SdHoareTripleChecker+Valid, 5655 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:40,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2726 Valid, 5655 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 911 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 02:33:40,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5740 states. [2022-11-22 02:33:41,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5740 to 5721. [2022-11-22 02:33:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5721 states, 3520 states have (on average 1.3068181818181819) internal successors, (4600), 3533 states have internal predecessors, (4600), 1856 states have call successors, (1856), 343 states have call predecessors, (1856), 342 states have return successors, (1852), 1847 states have call predecessors, (1852), 1852 states have call successors, (1852) [2022-11-22 02:33:41,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 8308 transitions. [2022-11-22 02:33:41,123 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 8308 transitions. Word has length 404 [2022-11-22 02:33:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:41,126 INFO L495 AbstractCegarLoop]: Abstraction has 5721 states and 8308 transitions. [2022-11-22 02:33:41,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 02:33:41,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 8308 transitions. [2022-11-22 02:33:41,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-11-22 02:33:41,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:41,144 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:33:41,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:33:41,144 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:33:41,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:41,154 INFO L85 PathProgramCache]: Analyzing trace with hash -802959940, now seen corresponding path program 1 times [2022-11-22 02:33:41,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:41,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209162052] [2022-11-22 02:33:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:41,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-22 02:33:42,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:42,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209162052] [2022-11-22 02:33:42,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209162052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:42,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:42,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:33:42,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263401325] [2022-11-22 02:33:42,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:42,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:33:42,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:42,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:33:42,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:33:42,026 INFO L87 Difference]: Start difference. First operand 5721 states and 8308 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 02:33:45,376 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 [] [2022-11-22 02:33:47,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:47,704 INFO L93 Difference]: Finished difference Result 15040 states and 21818 transitions. [2022-11-22 02:33:47,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:33:47,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 402 [2022-11-22 02:33:47,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:47,769 INFO L225 Difference]: With dead ends: 15040 [2022-11-22 02:33:47,769 INFO L226 Difference]: Without dead ends: 9392 [2022-11-22 02:33:47,800 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 [2022-11-22 02:33:47,804 INFO L413 NwaCegarLoop]: 3214 mSDtfsCounter, 2728 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2728 SdHoareTripleChecker+Valid, 5693 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:47,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2728 Valid, 5693 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 924 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-22 02:33:47,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9392 states. [2022-11-22 02:33:48,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9392 to 9373. [2022-11-22 02:33:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9373 states, 5784 states have (on average 1.3053250345781466) internal successors, (7550), 5809 states have internal predecessors, (7550), 3012 states have call successors, (3012), 575 states have call predecessors, (3012), 574 states have return successors, (3008), 2993 states have call predecessors, (3008), 3008 states have call successors, (3008) [2022-11-22 02:33:48,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9373 states to 9373 states and 13570 transitions. [2022-11-22 02:33:48,363 INFO L78 Accepts]: Start accepts. Automaton has 9373 states and 13570 transitions. Word has length 402 [2022-11-22 02:33:48,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:48,364 INFO L495 AbstractCegarLoop]: Abstraction has 9373 states and 13570 transitions. [2022-11-22 02:33:48,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 02:33:48,365 INFO L276 IsEmpty]: Start isEmpty. Operand 9373 states and 13570 transitions. [2022-11-22 02:33:48,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-22 02:33:48,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:48,377 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:33:48,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:33:48,377 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:33:48,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:48,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2050029688, now seen corresponding path program 1 times [2022-11-22 02:33:48,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:48,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875720457] [2022-11-22 02:33:48,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:48,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-22 02:33:49,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:49,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875720457] [2022-11-22 02:33:49,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875720457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:49,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:49,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:33:49,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599057836] [2022-11-22 02:33:49,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:49,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:33:49,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:49,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:33:49,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:33:49,075 INFO L87 Difference]: Start difference. First operand 9373 states and 13570 transitions. 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 02:33:51,997 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 [] [2022-11-22 02:33:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:55,056 INFO L93 Difference]: Finished difference Result 25583 states and 37027 transitions. [2022-11-22 02:33:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:33:55,057 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 403 [2022-11-22 02:33:55,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:55,152 INFO L225 Difference]: With dead ends: 25583 [2022-11-22 02:33:55,152 INFO L226 Difference]: Without dead ends: 16283 [2022-11-22 02:33:55,197 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 [2022-11-22 02:33:55,198 INFO L413 NwaCegarLoop]: 3421 mSDtfsCounter, 2727 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 5900 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:55,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2727 Valid, 5900 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 989 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 02:33:55,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16283 states. [2022-11-22 02:33:56,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16283 to 16264. [2022-11-22 02:33:56,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16264 states, 10061 states have (on average 1.30374714243117) internal successors, (13117), 10110 states have internal predecessors, (13117), 5192 states have call successors, (5192), 1009 states have call predecessors, (5192), 1008 states have return successors, (5188), 5153 states have call predecessors, (5188), 5188 states have call successors, (5188) [2022-11-22 02:33:56,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16264 states to 16264 states and 23497 transitions. [2022-11-22 02:33:56,341 INFO L78 Accepts]: Start accepts. Automaton has 16264 states and 23497 transitions. Word has length 403 [2022-11-22 02:33:56,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:56,343 INFO L495 AbstractCegarLoop]: Abstraction has 16264 states and 23497 transitions. [2022-11-22 02:33:56,344 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 02:33:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 16264 states and 23497 transitions. [2022-11-22 02:33:56,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-11-22 02:33:56,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:56,360 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 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] [2022-11-22 02:33:56,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:33:56,361 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:33:56,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:56,362 INFO L85 PathProgramCache]: Analyzing trace with hash -899005563, now seen corresponding path program 1 times [2022-11-22 02:33:56,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:56,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583940510] [2022-11-22 02:33:56,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:56,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2022-11-22 02:33:56,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:56,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583940510] [2022-11-22 02:33:56,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583940510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:56,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:56,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:33:56,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372960562] [2022-11-22 02:33:56,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:56,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:33:56,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:56,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:33:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:33:56,966 INFO L87 Difference]: Start difference. First operand 16264 states and 23497 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 02:34:00,401 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 [] [2022-11-22 02:34:03,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:03,694 INFO L93 Difference]: Finished difference Result 47400 states and 68478 transitions. [2022-11-22 02:34:03,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:34:03,694 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 409 [2022-11-22 02:34:03,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:03,869 INFO L225 Difference]: With dead ends: 47400 [2022-11-22 02:34:03,870 INFO L226 Difference]: Without dead ends: 31209 [2022-11-22 02:34:03,948 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 [2022-11-22 02:34:03,948 INFO L413 NwaCegarLoop]: 3816 mSDtfsCounter, 2675 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2675 SdHoareTripleChecker+Valid, 6299 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:03,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2675 Valid, 6299 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1081 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-22 02:34:03,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31209 states. [2022-11-22 02:34:05,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31209 to 31174. [2022-11-22 02:34:05,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31174 states, 19332 states have (on average 1.3012621560107593) internal successors, (25156), 19446 states have internal predecessors, (25156), 9902 states have call successors, (9902), 1938 states have call predecessors, (9902), 1937 states have return successors, (9898), 9807 states have call predecessors, (9898), 9898 states have call successors, (9898) [2022-11-22 02:34:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31174 states to 31174 states and 44956 transitions. [2022-11-22 02:34:05,996 INFO L78 Accepts]: Start accepts. Automaton has 31174 states and 44956 transitions. Word has length 409 [2022-11-22 02:34:05,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:05,997 INFO L495 AbstractCegarLoop]: Abstraction has 31174 states and 44956 transitions. [2022-11-22 02:34:05,998 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 02:34:05,998 INFO L276 IsEmpty]: Start isEmpty. Operand 31174 states and 44956 transitions. [2022-11-22 02:34:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-11-22 02:34:06,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:06,007 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 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] [2022-11-22 02:34:06,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:34:06,007 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:34:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:06,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1522754616, now seen corresponding path program 1 times [2022-11-22 02:34:06,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:06,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952822782] [2022-11-22 02:34:06,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:06,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2022-11-22 02:34:06,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:06,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952822782] [2022-11-22 02:34:06,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952822782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:06,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:06,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:34:06,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466883155] [2022-11-22 02:34:06,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:06,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:34:06,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:06,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:34:06,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:34:06,528 INFO L87 Difference]: Start difference. First operand 31174 states and 44956 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 02:34:11,476 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 [] [2022-11-22 02:34:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:12,791 INFO L93 Difference]: Finished difference Result 75094 states and 107651 transitions. [2022-11-22 02:34:12,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:34:12,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 415 [2022-11-22 02:34:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:13,038 INFO L225 Difference]: With dead ends: 75094 [2022-11-22 02:34:13,038 INFO L226 Difference]: Without dead ends: 43993 [2022-11-22 02:34:13,186 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 [2022-11-22 02:34:13,188 INFO L413 NwaCegarLoop]: 2967 mSDtfsCounter, 1591 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 5416 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:13,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 5416 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 952 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 02:34:13,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43993 states. [2022-11-22 02:34:15,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43993 to 43944. [2022-11-22 02:34:15,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43944 states, 27446 states have (on average 1.3022298331268674) internal successors, (35741), 27682 states have internal predecessors, (35741), 13428 states have call successors, (13428), 3068 states have call predecessors, (13428), 3067 states have return successors, (13424), 13209 states have call predecessors, (13424), 13424 states have call successors, (13424) [2022-11-22 02:34:15,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43944 states to 43944 states and 62593 transitions. [2022-11-22 02:34:15,795 INFO L78 Accepts]: Start accepts. Automaton has 43944 states and 62593 transitions. Word has length 415 [2022-11-22 02:34:15,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:15,796 INFO L495 AbstractCegarLoop]: Abstraction has 43944 states and 62593 transitions. [2022-11-22 02:34:15,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 02:34:15,797 INFO L276 IsEmpty]: Start isEmpty. Operand 43944 states and 62593 transitions. [2022-11-22 02:34:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-22 02:34:15,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:15,802 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 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] [2022-11-22 02:34:15,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:34:15,803 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:34:15,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1129619572, now seen corresponding path program 1 times [2022-11-22 02:34:15,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:15,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62867051] [2022-11-22 02:34:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:15,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 5374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5374 trivial. 0 not checked. [2022-11-22 02:34:18,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:18,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62867051] [2022-11-22 02:34:18,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62867051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:18,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:18,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:34:18,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500197465] [2022-11-22 02:34:18,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:18,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:34:18,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:18,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:34:18,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:34:18,417 INFO L87 Difference]: Start difference. First operand 43944 states and 62593 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-22 02:34:24,507 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 [] [2022-11-22 02:34:28,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:28,504 INFO L93 Difference]: Finished difference Result 82492 states and 119943 transitions. [2022-11-22 02:34:28,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:34:28,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 432 [2022-11-22 02:34:28,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:28,974 INFO L225 Difference]: With dead ends: 82492 [2022-11-22 02:34:28,975 INFO L226 Difference]: Without dead ends: 82490 [2022-11-22 02:34:29,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:29,010 INFO L413 NwaCegarLoop]: 3218 mSDtfsCounter, 2835 mSDsluCounter, 8759 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2838 SdHoareTripleChecker+Valid, 11977 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:29,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2838 Valid, 11977 Invalid, 1740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1736 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-22 02:34:29,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82490 states. [2022-11-22 02:34:32,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82490 to 82087. [2022-11-22 02:34:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82087 states, 51117 states have (on average 1.3037345697126201) internal successors, (66643), 51649 states have internal predecessors, (66643), 25270 states have call successors, (25270), 5729 states have call predecessors, (25270), 5697 states have return successors, (27505), 24740 states have call predecessors, (27505), 25262 states have call successors, (27505) [2022-11-22 02:34:33,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82087 states to 82087 states and 119418 transitions. [2022-11-22 02:34:33,936 INFO L78 Accepts]: Start accepts. Automaton has 82087 states and 119418 transitions. Word has length 432 [2022-11-22 02:34:33,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:33,938 INFO L495 AbstractCegarLoop]: Abstraction has 82087 states and 119418 transitions. [2022-11-22 02:34:33,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-22 02:34:33,938 INFO L276 IsEmpty]: Start isEmpty. Operand 82087 states and 119418 transitions. [2022-11-22 02:34:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-22 02:34:33,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:33,947 INFO L195 NwaCegarLoop]: trace histogram [38, 36, 36, 36, 36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:34:33,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:34:33,947 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:34:33,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:33,948 INFO L85 PathProgramCache]: Analyzing trace with hash 445013554, now seen corresponding path program 1 times [2022-11-22 02:34:33,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:33,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619561105] [2022-11-22 02:34:33,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:33,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5199 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5188 trivial. 0 not checked. [2022-11-22 02:34:34,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:34,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619561105] [2022-11-22 02:34:34,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619561105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:34,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:34,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:34:34,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331453788] [2022-11-22 02:34:34,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:34,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:34:34,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:34,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:34:34,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:34:34,673 INFO L87 Difference]: Start difference. First operand 82087 states and 119418 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 02:34:40,931 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 [] [2022-11-22 02:34:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:45,837 INFO L93 Difference]: Finished difference Result 201803 states and 293512 transitions. [2022-11-22 02:34:45,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:34:45,838 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 431 [2022-11-22 02:34:45,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:46,741 INFO L225 Difference]: With dead ends: 201803 [2022-11-22 02:34:46,741 INFO L226 Difference]: Without dead ends: 119789 [2022-11-22 02:34:47,026 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 [2022-11-22 02:34:47,027 INFO L413 NwaCegarLoop]: 4631 mSDtfsCounter, 2672 mSDsluCounter, 2501 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 7132 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:47,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 7132 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1230 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 02:34:47,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119789 states. [2022-11-22 02:34:52,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119789 to 119697. [2022-11-22 02:34:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119697 states, 74598 states have (on average 1.3018713638435346) internal successors, (97117), 75384 states have internal predecessors, (97117), 36820 states have call successors, (36820), 8354 states have call predecessors, (36820), 8276 states have return successors, (40106), 36006 states have call predecessors, (40106), 36812 states have call successors, (40106)