./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 5e519f3a 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_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/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_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-5e519f3 [2022-11-03 03:50:54,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:50:54,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:50:54,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:50:54,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:50:54,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:50:54,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:50:54,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:50:54,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:50:54,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:50:54,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:50:54,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:50:54,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:50:54,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:50:54,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:50:54,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:50:54,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:50:54,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:50:54,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:50:54,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:50:54,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:50:54,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:50:54,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:50:54,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:50:54,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:50:54,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:50:54,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:50:54,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:50:54,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:50:54,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:50:54,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:50:54,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:50:54,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:50:54,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:50:54,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:50:54,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:50:54,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:50:54,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:50:54,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:50:54,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:50:54,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:50:54,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:50:54,476 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:50:54,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:50:54,477 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:50:54,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:50:54,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:50:54,478 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:50:54,478 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:50:54,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:50:54,478 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:50:54,479 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:50:54,480 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:50:54,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:50:54,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:50:54,480 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:50:54,480 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:50:54,480 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:50:54,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:50:54,481 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:50:54,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:50:54,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:50:54,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:50:54,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:50:54,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:50:54,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:50:54,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:50:54,485 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:50:54,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:50:54,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:50:54,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:50:54,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:50:54,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:50:54,486 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:50:54,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:50:54,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:50:54,487 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:50:54,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:50:54,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:50:54,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:50:54,487 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_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 [2022-11-03 03:50:54,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:50:54,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:50:54,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:50:54,785 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:50:54,786 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:50:54,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2022-11-03 03:50:54,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/data/a82d39ca0/411a53e8d08f4459b655dbe7ab63ab2d/FLAG674f83943 [2022-11-03 03:50:56,022 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:50:56,023 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2022-11-03 03:50:56,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/data/a82d39ca0/411a53e8d08f4459b655dbe7ab63ab2d/FLAG674f83943 [2022-11-03 03:50:56,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/data/a82d39ca0/411a53e8d08f4459b655dbe7ab63ab2d [2022-11-03 03:50:56,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:50:56,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:50:56,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:50:56,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:50:56,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:50:56,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:50:56" (1/1) ... [2022-11-03 03:50:56,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ba121f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:50:56, skipping insertion in model container [2022-11-03 03:50:56,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:50:56" (1/1) ... [2022-11-03 03:50:56,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:50:56,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:51:00,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2022-11-03 03:51:00,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2022-11-03 03:51:00,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2022-11-03 03:51:00,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2022-11-03 03:51:00,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:51:00,408 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:51:00,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2022-11-03 03:51:00,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2022-11-03 03:51:00,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2022-11-03 03:51:00,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2022-11-03 03:51:00,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:51:01,192 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:51:01,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01 WrapperNode [2022-11-03 03:51:01,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:51:01,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:51:01,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:51:01,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:51:01,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:01,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:01,678 INFO L138 Inliner]: procedures = 410, calls = 4510, calls flagged for inlining = 226, calls inlined = 200, statements flattened = 9274 [2022-11-03 03:51:01,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:51:01,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:51:01,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:51:01,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:51:01,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:01,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:01,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:01,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:02,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:02,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:02,125 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:02,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:02,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:51:02,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:51:02,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:51:02,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:51:02,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (1/1) ... [2022-11-03 03:51:02,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:51:02,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:51:02,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:51:02,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9c1ac8-d6d5-4867-9634-5dabcd7295b8/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:51:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2022-11-03 03:51:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2022-11-03 03:51:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-03 03:51:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-03 03:51:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2022-11-03 03:51:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2022-11-03 03:51:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2022-11-03 03:51:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2022-11-03 03:51:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:51:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:51:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-03 03:51:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-03 03:51:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2022-11-03 03:51:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2022-11-03 03:51:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:51:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:51:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2022-11-03 03:51:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2022-11-03 03:51:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2022-11-03 03:51:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2022-11-03 03:51:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2022-11-03 03:51:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2022-11-03 03:51:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2022-11-03 03:51:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2022-11-03 03:51:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2022-11-03 03:51:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2022-11-03 03:51:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2022-11-03 03:51:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2022-11-03 03:51:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2022-11-03 03:51:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2022-11-03 03:51:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:51:02,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:51:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-03 03:51:02,289 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-03 03:51:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:51:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:51:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:51:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:51:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 03:51:02,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 03:51:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:51:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2022-11-03 03:51:02,292 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2022-11-03 03:51:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2022-11-03 03:51:02,292 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2022-11-03 03:51:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2022-11-03 03:51:02,293 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2022-11-03 03:51:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-03 03:51:02,293 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-03 03:51:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:51:02,293 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:51:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2022-11-03 03:51:02,294 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2022-11-03 03:51:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2022-11-03 03:51:02,294 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2022-11-03 03:51:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2022-11-03 03:51:02,294 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2022-11-03 03:51:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-03 03:51:02,295 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-03 03:51:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:51:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2022-11-03 03:51:02,295 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2022-11-03 03:51:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-11-03 03:51:02,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-11-03 03:51:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:51:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:51:02,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:51:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-03 03:51:02,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-03 03:51:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2022-11-03 03:51:02,297 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2022-11-03 03:51:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:51:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2022-11-03 03:51:02,297 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2022-11-03 03:51:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:51:02,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:51:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:51:02,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:51:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-03 03:51:02,298 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-03 03:51:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2022-11-03 03:51:02,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2022-11-03 03:51:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2022-11-03 03:51:02,299 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2022-11-03 03:51:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2022-11-03 03:51:02,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2022-11-03 03:51:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:51:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2022-11-03 03:51:02,300 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2022-11-03 03:51:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2022-11-03 03:51:02,300 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2022-11-03 03:51:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:51:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:51:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2022-11-03 03:51:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2022-11-03 03:51:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 03:51:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 03:51:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:51:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2022-11-03 03:51:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2022-11-03 03:51:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:51:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:51:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2022-11-03 03:51:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2022-11-03 03:51:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:51:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-03 03:51:02,303 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-03 03:51:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2022-11-03 03:51:02,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2022-11-03 03:51:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:51:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:51:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-11-03 03:51:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-11-03 03:51:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2022-11-03 03:51:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2022-11-03 03:51:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 03:51:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 03:51:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2022-11-03 03:51:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2022-11-03 03:51:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-03 03:51:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-03 03:51:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:51:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:51:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:51:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:51:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:51:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:51:02,307 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 03:51:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 03:51:02,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:51:02,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:51:02,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:51:02,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:51:02,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-03 03:51:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-03 03:51:02,308 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 03:51:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 03:51:02,308 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2022-11-03 03:51:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2022-11-03 03:51:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:51:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:51:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2022-11-03 03:51:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2022-11-03 03:51:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-03 03:51:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-03 03:51:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2022-11-03 03:51:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2022-11-03 03:51:02,310 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-11-03 03:51:02,310 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-11-03 03:51:02,311 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-11-03 03:51:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-11-03 03:51:02,311 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2022-11-03 03:51:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2022-11-03 03:51:02,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:51:02,311 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:51:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 03:51:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 03:51:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 03:51:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 03:51:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:51:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:51:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:51:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2022-11-03 03:51:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2022-11-03 03:51:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:51:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2022-11-03 03:51:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2022-11-03 03:51:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2022-11-03 03:51:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2022-11-03 03:51:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2022-11-03 03:51:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2022-11-03 03:51:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-03 03:51:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-03 03:51:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:51:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2022-11-03 03:51:02,315 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2022-11-03 03:51:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 03:51:02,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 03:51:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2022-11-03 03:51:02,316 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2022-11-03 03:51:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:51:02,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:51:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2022-11-03 03:51:02,316 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2022-11-03 03:51:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:51:02,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:51:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 03:51:02,317 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 03:51:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2022-11-03 03:51:02,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2022-11-03 03:51:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-03 03:51:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-03 03:51:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:51:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:51:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2022-11-03 03:51:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2022-11-03 03:51:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 03:51:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 03:51:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-03 03:51:02,319 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-03 03:51:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2022-11-03 03:51:02,319 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2022-11-03 03:51:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:51:02,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:51:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 03:51:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 03:51:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2022-11-03 03:51:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2022-11-03 03:51:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2022-11-03 03:51:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2022-11-03 03:51:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2022-11-03 03:51:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2022-11-03 03:51:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:51:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2022-11-03 03:51:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2022-11-03 03:51:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:51:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:51:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2022-11-03 03:51:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2022-11-03 03:51:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2022-11-03 03:51:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2022-11-03 03:51:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-03 03:51:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-03 03:51:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 03:51:02,323 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 03:51:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2022-11-03 03:51:02,323 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2022-11-03 03:51:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:51:02,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:51:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 03:51:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 03:51:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2022-11-03 03:51:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2022-11-03 03:51:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2022-11-03 03:51:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2022-11-03 03:51:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2022-11-03 03:51:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2022-11-03 03:51:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2022-11-03 03:51:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2022-11-03 03:51:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2022-11-03 03:51:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2022-11-03 03:51:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 03:51:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:51:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-03 03:51:02,326 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-03 03:51:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2022-11-03 03:51:02,326 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2022-11-03 03:51:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:51:02,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:51:03,708 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:51:03,715 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:51:06,259 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:51:27,509 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:51:27,829 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:51:29,859 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:51:29,860 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:51:29,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:29 BoogieIcfgContainer [2022-11-03 03:51:29,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:51:29,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:51:29,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:51:29,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:51:29,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:50:56" (1/3) ... [2022-11-03 03:51:29,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5d4795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:51:29, skipping insertion in model container [2022-11-03 03:51:29,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:01" (2/3) ... [2022-11-03 03:51:29,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5d4795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:51:29, skipping insertion in model container [2022-11-03 03:51:29,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:29" (3/3) ... [2022-11-03 03:51:29,876 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2022-11-03 03:51:29,898 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:51:29,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 03:51:30,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:51:30,046 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;@7f1fa82a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:51:30,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 03:51:30,060 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) [2022-11-03 03:51:30,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-03 03:51:30,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:30,119 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, 1] [2022-11-03 03:51:30,119 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)] === [2022-11-03 03:51:30,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:30,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1222120409, now seen corresponding path program 1 times [2022-11-03 03:51:30,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:30,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606902152] [2022-11-03 03:51:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:30,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 5115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5115 trivial. 0 not checked. [2022-11-03 03:51:31,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:31,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606902152] [2022-11-03 03:51:31,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606902152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:31,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:31,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:51:31,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754077663] [2022-11-03 03:51:31,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:31,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:51:31,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:31,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:51:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:51:31,814 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 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-11-03 03:51:35,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:39,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:41,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:42,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:42,307 INFO L93 Difference]: Finished difference Result 5872 states and 8870 transitions. [2022-11-03 03:51:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:51:42,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 385 [2022-11-03 03:51:42,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:42,360 INFO L225 Difference]: With dead ends: 5872 [2022-11-03 03:51:42,360 INFO L226 Difference]: Without dead ends: 3899 [2022-11-03 03:51:42,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:51:42,388 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 2768 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2768 SdHoareTripleChecker+Valid, 5676 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:42,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2768 Valid, 5676 Invalid, 927 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 911 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2022-11-03 03:51:42,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3899 states. [2022-11-03 03:51:42,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3899 to 3895. [2022-11-03 03:51:42,764 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) [2022-11-03 03:51:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3895 states to 3895 states and 5677 transitions. [2022-11-03 03:51:42,805 INFO L78 Accepts]: Start accepts. Automaton has 3895 states and 5677 transitions. Word has length 385 [2022-11-03 03:51:42,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:42,812 INFO L495 AbstractCegarLoop]: Abstraction has 3895 states and 5677 transitions. [2022-11-03 03:51:42,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-11-03 03:51:42,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3895 states and 5677 transitions. [2022-11-03 03:51:42,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-03 03:51:42,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:42,834 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] [2022-11-03 03:51:42,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:51:42,835 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)] === [2022-11-03 03:51:42,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1920327043, now seen corresponding path program 1 times [2022-11-03 03:51:42,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:42,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161816360] [2022-11-03 03:51:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:42,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:43,959 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-03 03:51:43,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:43,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161816360] [2022-11-03 03:51:43,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161816360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:43,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:43,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:51:43,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825308903] [2022-11-03 03:51:43,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:43,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:51:43,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:43,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:51:43,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:51:43,967 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) [2022-11-03 03:51:47,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:50,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:53,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:54,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:54,372 INFO L93 Difference]: Finished difference Result 9677 states and 14072 transitions. [2022-11-03 03:51:54,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:51:54,373 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 [2022-11-03 03:51:54,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:54,419 INFO L225 Difference]: With dead ends: 9677 [2022-11-03 03:51:54,419 INFO L226 Difference]: Without dead ends: 5855 [2022-11-03 03:51:54,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:51:54,443 INFO L413 NwaCegarLoop]: 3180 mSDtfsCounter, 2725 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 5657 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:54,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 5657 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 913 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2022-11-03 03:51:54,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2022-11-03 03:51:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5833. [2022-11-03 03:51:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5833 states, 3591 states have (on average 1.306878306878307) internal successors, (4693), 3605 states have internal predecessors, (4693), 1880 states have call successors, (1880), 360 states have call predecessors, (1880), 359 states have return successors, (1883), 1870 states have call predecessors, (1883), 1876 states have call successors, (1883) [2022-11-03 03:51:54,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 8456 transitions. [2022-11-03 03:51:54,781 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 8456 transitions. Word has length 404 [2022-11-03 03:51:54,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:54,783 INFO L495 AbstractCegarLoop]: Abstraction has 5833 states and 8456 transitions. [2022-11-03 03:51:54,784 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) [2022-11-03 03:51:54,784 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 8456 transitions. [2022-11-03 03:51:54,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-03 03:51:54,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:54,796 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] [2022-11-03 03:51:54,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:51:54,802 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)] === [2022-11-03 03:51:54,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:54,812 INFO L85 PathProgramCache]: Analyzing trace with hash -255544321, now seen corresponding path program 1 times [2022-11-03 03:51:54,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:54,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024240376] [2022-11-03 03:51:54,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:54,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-03 03:51:55,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:55,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024240376] [2022-11-03 03:51:55,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024240376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:55,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:55,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:51:55,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808882890] [2022-11-03 03:51:55,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:55,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:51:55,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:55,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:51:55,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:51:55,642 INFO L87 Difference]: Start difference. First operand 5833 states and 8456 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) [2022-11-03 03:51:59,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:03,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:05,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:05,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:05,914 INFO L93 Difference]: Finished difference Result 15264 states and 22121 transitions. [2022-11-03 03:52:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:52:05,914 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 [2022-11-03 03:52:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:05,975 INFO L225 Difference]: With dead ends: 15264 [2022-11-03 03:52:05,975 INFO L226 Difference]: Without dead ends: 9504 [2022-11-03 03:52:06,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:06,010 INFO L413 NwaCegarLoop]: 3213 mSDtfsCounter, 2727 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 5690 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:06,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2727 Valid, 5690 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 927 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-11-03 03:52:06,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9504 states. [2022-11-03 03:52:06,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9504 to 9485. [2022-11-03 03:52:06,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9485 states, 5855 states have (on average 1.3053800170794192) internal successors, (7643), 5881 states have internal predecessors, (7643), 3036 states have call successors, (3036), 592 states have call predecessors, (3036), 591 states have return successors, (3046), 3016 states have call predecessors, (3046), 3032 states have call successors, (3046) [2022-11-03 03:52:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9485 states to 9485 states and 13725 transitions. [2022-11-03 03:52:06,840 INFO L78 Accepts]: Start accepts. Automaton has 9485 states and 13725 transitions. Word has length 403 [2022-11-03 03:52:06,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:06,841 INFO L495 AbstractCegarLoop]: Abstraction has 9485 states and 13725 transitions. [2022-11-03 03:52:06,842 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) [2022-11-03 03:52:06,842 INFO L276 IsEmpty]: Start isEmpty. Operand 9485 states and 13725 transitions. [2022-11-03 03:52:06,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-11-03 03:52:06,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:06,856 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] [2022-11-03 03:52:06,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:52:06,856 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)] === [2022-11-03 03:52:06,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:06,857 INFO L85 PathProgramCache]: Analyzing trace with hash -829006890, now seen corresponding path program 1 times [2022-11-03 03:52:06,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:06,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297516111] [2022-11-03 03:52:06,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:06,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2022-11-03 03:52:07,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:07,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297516111] [2022-11-03 03:52:07,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297516111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:07,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:07,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:52:07,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116329299] [2022-11-03 03:52:07,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:07,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:52:07,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:07,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:52:07,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:07,735 INFO L87 Difference]: Start difference. First operand 9485 states and 13725 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) [2022-11-03 03:52:10,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:13,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:16,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:18,638 INFO L93 Difference]: Finished difference Result 26036 states and 37688 transitions. [2022-11-03 03:52:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:52:18,639 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 [2022-11-03 03:52:18,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:18,749 INFO L225 Difference]: With dead ends: 26036 [2022-11-03 03:52:18,750 INFO L226 Difference]: Without dead ends: 16624 [2022-11-03 03:52:18,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:18,802 INFO L413 NwaCegarLoop]: 3340 mSDtfsCounter, 2727 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 5817 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:18,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 5817 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 969 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-11-03 03:52:18,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16624 states. [2022-11-03 03:52:19,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16624 to 16602. [2022-11-03 03:52:19,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16602 states, 10276 states have (on average 1.3040093421564811) internal successors, (13400), 10328 states have internal predecessors, (13400), 5264 states have call successors, (5264), 1060 states have call predecessors, (5264), 1059 states have return successors, (5330), 5222 states have call predecessors, (5330), 5260 states have call successors, (5330) [2022-11-03 03:52:19,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16602 states to 16602 states and 23994 transitions. [2022-11-03 03:52:19,969 INFO L78 Accepts]: Start accepts. Automaton has 16602 states and 23994 transitions. Word has length 402 [2022-11-03 03:52:19,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:19,971 INFO L495 AbstractCegarLoop]: Abstraction has 16602 states and 23994 transitions. [2022-11-03 03:52:19,972 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) [2022-11-03 03:52:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 16602 states and 23994 transitions. [2022-11-03 03:52:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-11-03 03:52:19,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:19,983 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] [2022-11-03 03:52:19,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:52:19,984 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)] === [2022-11-03 03:52:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash -180409085, now seen corresponding path program 1 times [2022-11-03 03:52:19,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:19,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523077190] [2022-11-03 03:52:19,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:19,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2022-11-03 03:52:20,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:20,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523077190] [2022-11-03 03:52:20,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523077190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:20,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:20,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:52:20,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153267982] [2022-11-03 03:52:20,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:20,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:52:20,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:20,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:52:20,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:20,642 INFO L87 Difference]: Start difference. First operand 16602 states and 23994 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) [2022-11-03 03:52:24,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:27,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:30,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:31,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:31,779 INFO L93 Difference]: Finished difference Result 48076 states and 69528 transitions. [2022-11-03 03:52:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:52:31,780 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 [2022-11-03 03:52:31,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:32,014 INFO L225 Difference]: With dead ends: 48076 [2022-11-03 03:52:32,014 INFO L226 Difference]: Without dead ends: 31547 [2022-11-03 03:52:32,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:32,097 INFO L413 NwaCegarLoop]: 3811 mSDtfsCounter, 2673 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 6292 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:32,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2680 Valid, 6292 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1084 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-11-03 03:52:32,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31547 states. [2022-11-03 03:52:34,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31547 to 31512. [2022-11-03 03:52:34,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31512 states, 19547 states have (on average 1.301427329001893) internal successors, (25439), 19664 states have internal predecessors, (25439), 9974 states have call successors, (9974), 1989 states have call predecessors, (9974), 1988 states have return successors, (10096), 9876 states have call predecessors, (10096), 9970 states have call successors, (10096) [2022-11-03 03:52:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31512 states to 31512 states and 45509 transitions. [2022-11-03 03:52:34,487 INFO L78 Accepts]: Start accepts. Automaton has 31512 states and 45509 transitions. Word has length 409 [2022-11-03 03:52:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:34,490 INFO L495 AbstractCegarLoop]: Abstraction has 31512 states and 45509 transitions. [2022-11-03 03:52:34,490 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) [2022-11-03 03:52:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 31512 states and 45509 transitions. [2022-11-03 03:52:34,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-03 03:52:34,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:34,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:34,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:52:34,517 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)] === [2022-11-03 03:52:34,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash -348100519, now seen corresponding path program 1 times [2022-11-03 03:52:34,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:34,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409991861] [2022-11-03 03:52:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:34,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5116 trivial. 0 not checked. [2022-11-03 03:52:35,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:35,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409991861] [2022-11-03 03:52:35,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409991861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:35,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:35,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:52:35,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488048862] [2022-11-03 03:52:35,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:35,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:52:35,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:35,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:52:35,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:35,299 INFO L87 Difference]: Start difference. First operand 31512 states and 45509 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-03 03:52:39,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:41,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:45,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:46,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:46,613 INFO L93 Difference]: Finished difference Result 75773 states and 108934 transitions. [2022-11-03 03:52:46,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:52:46,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 418 [2022-11-03 03:52:46,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:46,858 INFO L225 Difference]: With dead ends: 75773 [2022-11-03 03:52:46,858 INFO L226 Difference]: Without dead ends: 44334 [2022-11-03 03:52:46,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:52:46,980 INFO L413 NwaCegarLoop]: 2971 mSDtfsCounter, 1589 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 5418 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:46,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 5418 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 953 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2022-11-03 03:52:47,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44334 states. [2022-11-03 03:52:49,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44334 to 44282. [2022-11-03 03:52:50,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44282 states, 27661 states have (on average 1.3023390332959763) internal successors, (36024), 27900 states have internal predecessors, (36024), 13500 states have call successors, (13500), 3119 states have call predecessors, (13500), 3118 states have return successors, (13790), 13278 states have call predecessors, (13790), 13496 states have call successors, (13790) [2022-11-03 03:52:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44282 states to 44282 states and 63314 transitions. [2022-11-03 03:52:50,293 INFO L78 Accepts]: Start accepts. Automaton has 44282 states and 63314 transitions. Word has length 418 [2022-11-03 03:52:50,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:50,294 INFO L495 AbstractCegarLoop]: Abstraction has 44282 states and 63314 transitions. [2022-11-03 03:52:50,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-03 03:52:50,294 INFO L276 IsEmpty]: Start isEmpty. Operand 44282 states and 63314 transitions. [2022-11-03 03:52:50,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2022-11-03 03:52:50,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:50,300 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:50,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:52:50,301 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)] === [2022-11-03 03:52:50,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:50,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1209496426, now seen corresponding path program 1 times [2022-11-03 03:52:50,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:50,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157548220] [2022-11-03 03:52:50,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:50,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:52,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5375 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5375 trivial. 0 not checked. [2022-11-03 03:52:52,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:52,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157548220] [2022-11-03 03:52:52,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157548220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:52,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:52:52,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:52:52,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335290955] [2022-11-03 03:52:52,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:52,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:52:52,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:52,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:52:52,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:52:52,801 INFO L87 Difference]: Start difference. First operand 44282 states and 63314 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) [2022-11-03 03:52:57,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:00,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:02,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:05,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:08,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:08,539 INFO L93 Difference]: Finished difference Result 83549 states and 122541 transitions. [2022-11-03 03:53:08,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:53:08,539 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 433 [2022-11-03 03:53:08,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:09,168 INFO L225 Difference]: With dead ends: 83549 [2022-11-03 03:53:09,168 INFO L226 Difference]: Without dead ends: 83547 [2022-11-03 03:53:09,206 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 [2022-11-03 03:53:09,207 INFO L413 NwaCegarLoop]: 3224 mSDtfsCounter, 2834 mSDsluCounter, 10072 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 12004 SdHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:09,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2837 Valid, 12004 Invalid, 1748 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1741 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2022-11-03 03:53:09,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83547 states. [2022-11-03 03:53:13,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83547 to 83112. [2022-11-03 03:53:13,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83112 states, 51813 states have (on average 1.303418061104356) internal successors, (67534), 52354 states have internal predecessors, (67534), 25488 states have call successors, (25488), 5839 states have call predecessors, (25488), 5808 states have return successors, (28957), 24950 states have call predecessors, (28957), 25480 states have call successors, (28957) [2022-11-03 03:53:14,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83112 states to 83112 states and 121979 transitions. [2022-11-03 03:53:14,567 INFO L78 Accepts]: Start accepts. Automaton has 83112 states and 121979 transitions. Word has length 433 [2022-11-03 03:53:14,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:14,568 INFO L495 AbstractCegarLoop]: Abstraction has 83112 states and 121979 transitions. [2022-11-03 03:53:14,568 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) [2022-11-03 03:53:14,569 INFO L276 IsEmpty]: Start isEmpty. Operand 83112 states and 121979 transitions. [2022-11-03 03:53:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-03 03:53:14,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:14,575 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] [2022-11-03 03:53:14,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:53:14,576 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)] === [2022-11-03 03:53:14,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash -661814599, now seen corresponding path program 1 times [2022-11-03 03:53:14,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:14,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606064565] [2022-11-03 03:53:14,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:14,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:15,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5199 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5188 trivial. 0 not checked. [2022-11-03 03:53:15,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:15,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606064565] [2022-11-03 03:53:15,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606064565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:15,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:15,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:53:15,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291227446] [2022-11-03 03:53:15,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:15,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:53:15,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:15,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:53:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:15,400 INFO L87 Difference]: Start difference. First operand 83112 states and 121979 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) [2022-11-03 03:53:21,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:24,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:26,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:30,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:30,596 INFO L93 Difference]: Finished difference Result 203312 states and 298281 transitions. [2022-11-03 03:53:30,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:53:30,597 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 [2022-11-03 03:53:30,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:31,375 INFO L225 Difference]: With dead ends: 203312 [2022-11-03 03:53:31,376 INFO L226 Difference]: Without dead ends: 120273 [2022-11-03 03:53:31,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:31,692 INFO L413 NwaCegarLoop]: 4613 mSDtfsCounter, 2672 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:31,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 7112 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1231 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-11-03 03:53:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120273 states. [2022-11-03 03:53:37,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120273 to 120181. [2022-11-03 03:53:37,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120181 states, 74900 states have (on average 1.301789052069426) internal successors, (97504), 75692 states have internal predecessors, (97504), 36916 states have call successors, (36916), 8433 states have call predecessors, (36916), 8362 states have return successors, (41831), 36103 states have call predecessors, (41831), 36908 states have call successors, (41831) [2022-11-03 03:53:38,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120181 states to 120181 states and 176251 transitions. [2022-11-03 03:53:38,280 INFO L78 Accepts]: Start accepts. Automaton has 120181 states and 176251 transitions. Word has length 431 [2022-11-03 03:53:38,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:38,281 INFO L495 AbstractCegarLoop]: Abstraction has 120181 states and 176251 transitions. [2022-11-03 03:53:38,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (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) [2022-11-03 03:53:38,282 INFO L276 IsEmpty]: Start isEmpty. Operand 120181 states and 176251 transitions. [2022-11-03 03:53:38,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-03 03:53:38,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:38,289 INFO L195 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:53:38,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 03:53:38,290 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:53:38,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:38,290 INFO L85 PathProgramCache]: Analyzing trace with hash 216789730, now seen corresponding path program 1 times [2022-11-03 03:53:38,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:38,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207107908] [2022-11-03 03:53:38,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:38,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5375 trivial. 0 not checked. [2022-11-03 03:53:40,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:40,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207107908] [2022-11-03 03:53:40,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207107908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:40,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:40,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:53:40,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823317365] [2022-11-03 03:53:40,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:40,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:53:40,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:40,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:53:40,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:53:40,423 INFO L87 Difference]: Start difference. First operand 120181 states and 176251 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-03 03:53:45,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:48,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []