./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS --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 39ee2ab624432b04c82409208cb55ec81e2dd2f34a0a1ec3852f07ecbac05add --- 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-8393723 [2022-11-19 07:11:42,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:11:42,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:11:42,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:11:42,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:11:42,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:11:42,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:11:42,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:11:42,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:11:42,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:11:42,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:11:42,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:11:42,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:11:42,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:11:42,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:11:42,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:11:42,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:11:42,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:11:42,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:11:42,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:11:42,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:11:42,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:11:42,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:11:42,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:11:42,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:11:42,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:11:42,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:11:42,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:11:42,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:11:42,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:11:42,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:11:42,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:11:42,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:11:42,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:11:42,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:11:42,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:11:42,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:11:42,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:11:42,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:11:42,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:11:42,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:11:42,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:11:42,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:11:42,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:11:42,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:11:42,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:11:42,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:11:42,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:11:42,700 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:11:42,701 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:11:42,701 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:11:42,701 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:11:42,702 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:11:42,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:11:42,702 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:11:42,702 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:11:42,703 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:11:42,703 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:11:42,703 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:11:42,704 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:11:42,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:11:42,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:11:42,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:11:42,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:11:42,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:11:42,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:11:42,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:11:42,706 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:11:42,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:11:42,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:11:42,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:11:42,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:11:42,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:11:42,707 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:11:42,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:11:42,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:11:42,708 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:11:42,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:11:42,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:11:42,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:11:42,709 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_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39ee2ab624432b04c82409208cb55ec81e2dd2f34a0a1ec3852f07ecbac05add [2022-11-19 07:11:43,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:11:43,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:11:43,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:11:43,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:11:43,074 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:11:43,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-19 07:11:43,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/data/62aa366fe/77ffeacd095f4415846ce4c2b12c7c10/FLAG1c0492f3a [2022-11-19 07:11:44,770 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:11:44,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-19 07:11:44,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/data/62aa366fe/77ffeacd095f4415846ce4c2b12c7c10/FLAG1c0492f3a [2022-11-19 07:11:45,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/data/62aa366fe/77ffeacd095f4415846ce4c2b12c7c10 [2022-11-19 07:11:45,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:11:45,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:11:45,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:11:45,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:11:45,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:11:45,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:11:45" (1/1) ... [2022-11-19 07:11:45,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29c3ad99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:45, skipping insertion in model container [2022-11-19 07:11:45,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:11:45" (1/1) ... [2022-11-19 07:11:45,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:11:45,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:11:56,390 WARN L234 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_e289c356-6256-4350-ae74-fcb99b129bf5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904444,904457] [2022-11-19 07:11:56,395 WARN L234 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_e289c356-6256-4350-ae74-fcb99b129bf5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904610,904623] [2022-11-19 07:11:56,396 WARN L234 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_e289c356-6256-4350-ae74-fcb99b129bf5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904774,904787] [2022-11-19 07:11:56,397 WARN L234 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_e289c356-6256-4350-ae74-fcb99b129bf5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904939,904952] [2022-11-19 07:11:56,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:11:56,590 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:11:58,026 WARN L234 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_e289c356-6256-4350-ae74-fcb99b129bf5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904444,904457] [2022-11-19 07:11:58,027 WARN L234 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_e289c356-6256-4350-ae74-fcb99b129bf5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904610,904623] [2022-11-19 07:11:58,028 WARN L234 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_e289c356-6256-4350-ae74-fcb99b129bf5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904774,904787] [2022-11-19 07:11:58,029 WARN L234 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_e289c356-6256-4350-ae74-fcb99b129bf5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904939,904952] [2022-11-19 07:11:58,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:11:58,704 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:11:58,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58 WrapperNode [2022-11-19 07:11:58,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:11:58,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:11:58,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:11:58,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:11:58,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:11:59,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:00,500 INFO L138 Inliner]: procedures = 730, calls = 16236, calls flagged for inlining = 402, calls inlined = 349, statements flattened = 29243 [2022-11-19 07:12:00,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:12:00,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:12:00,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:12:00,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:12:00,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:00,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:00,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:00,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:01,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:01,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:01,866 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:01,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:02,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:12:02,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:12:02,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:12:02,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:12:02,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (1/1) ... [2022-11-19 07:12:02,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:12:02,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:12:02,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:12:02,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e289c356-6256-4350-ae74-fcb99b129bf5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:12:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 07:12:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 07:12:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-19 07:12:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-19 07:12:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-19 07:12:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-19 07:12:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-19 07:12:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-19 07:12:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-19 07:12:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-19 07:12:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-19 07:12:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-19 07:12:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-19 07:12:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-19 07:12:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:12:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:12:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-19 07:12:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-19 07:12:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-19 07:12:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-19 07:12:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:12:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:12:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-19 07:12:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-19 07:12:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-19 07:12:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-19 07:12:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:12:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:12:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-19 07:12:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-19 07:12:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-19 07:12:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-19 07:12:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-19 07:12:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-19 07:12:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 07:12:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 07:12:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-19 07:12:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-19 07:12:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-19 07:12:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-19 07:12:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-19 07:12:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-19 07:12:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 07:12:02,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 07:12:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-19 07:12:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-19 07:12:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:12:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:12:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 07:12:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 07:12:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-19 07:12:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-19 07:12:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-19 07:12:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-19 07:12:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 07:12:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 07:12:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-19 07:12:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-19 07:12:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-19 07:12:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-19 07:12:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:12:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:12:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-19 07:12:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-19 07:12:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-19 07:12:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-19 07:12:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-19 07:12:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-19 07:12:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-19 07:12:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-19 07:12:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:12:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:12:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:12:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:12:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:12:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:12:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:12:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:12:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:12:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:12:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:12:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:12:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-19 07:12:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-19 07:12:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:12:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:12:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-19 07:12:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-19 07:12:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:12:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:12:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:12:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-19 07:12:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-19 07:12:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-19 07:12:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-19 07:12:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-19 07:12:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-19 07:12:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-19 07:12:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-19 07:12:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-19 07:12:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-19 07:12:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-19 07:12:02,579 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-19 07:12:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:12:02,579 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:12:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-19 07:12:02,579 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-19 07:12:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-19 07:12:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-19 07:12:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-19 07:12:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-19 07:12:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:12:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:12:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:12:02,581 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:12:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-19 07:12:02,581 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-19 07:12:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-19 07:12:02,581 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-19 07:12:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:12:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-19 07:12:02,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-19 07:12:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-19 07:12:02,582 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-19 07:12:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-19 07:12:02,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-19 07:12:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-19 07:12:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-19 07:12:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:12:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:12:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-19 07:12:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-19 07:12:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:12:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:12:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:12:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-19 07:12:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-19 07:12:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:12:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:12:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:12:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-19 07:12:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-19 07:12:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-19 07:12:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-19 07:12:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-19 07:12:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-19 07:12:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:12:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:12:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-19 07:12:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-19 07:12:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-19 07:12:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-19 07:12:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:12:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:12:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-19 07:12:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-19 07:12:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-19 07:12:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-19 07:12:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:12:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:12:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-19 07:12:02,621 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-19 07:12:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:12:02,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:12:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-19 07:12:02,622 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-19 07:12:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-19 07:12:02,622 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-19 07:12:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 07:12:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 07:12:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:12:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:12:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-19 07:12:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-19 07:12:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-19 07:12:02,624 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-19 07:12:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-19 07:12:02,624 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-19 07:12:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-19 07:12:02,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-19 07:12:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-19 07:12:02,625 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-19 07:12:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:12:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:12:02,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:12:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:12:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:12:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-19 07:12:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-19 07:12:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-19 07:12:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-19 07:12:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:12:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 07:12:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 07:12:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:12:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:12:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:12:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:12:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:12:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-19 07:12:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-19 07:12:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:12:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-19 07:12:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-19 07:12:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:12:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:12:02,630 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-19 07:12:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-19 07:12:02,630 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-19 07:12:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-19 07:12:02,630 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-19 07:12:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-19 07:12:02,631 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-19 07:12:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-19 07:12:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 07:12:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 07:12:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-19 07:12:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-19 07:12:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-19 07:12:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-19 07:12:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-19 07:12:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-19 07:12:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 07:12:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 07:12:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-19 07:12:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-19 07:12:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:12:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:12:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-19 07:12:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-19 07:12:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:12:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:12:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-19 07:12:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-19 07:12:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-19 07:12:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-19 07:12:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:12:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:12:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-19 07:12:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-19 07:12:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-19 07:12:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-19 07:12:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-19 07:12:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-19 07:12:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-19 07:12:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-19 07:12:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-19 07:12:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-19 07:12:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-19 07:12:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-19 07:12:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-19 07:12:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-19 07:12:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 07:12:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 07:12:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:12:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:12:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-19 07:12:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-19 07:12:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-19 07:12:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-19 07:12:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-19 07:12:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-19 07:12:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-19 07:12:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-19 07:12:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:12:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:12:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-19 07:12:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-19 07:12:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-19 07:12:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-19 07:12:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-19 07:12:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-19 07:12:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-19 07:12:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-19 07:12:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-19 07:12:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-19 07:12:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 07:12:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 07:12:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-19 07:12:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-19 07:12:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:12:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:12:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:12:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:12:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-19 07:12:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-19 07:12:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:12:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:12:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 07:12:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 07:12:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-19 07:12:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-19 07:12:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:12:02,671 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:12:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 07:12:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-19 07:12:02,671 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-19 07:12:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:12:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:12:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-19 07:12:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-19 07:12:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-19 07:12:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-19 07:12:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-19 07:12:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-19 07:12:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-19 07:12:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-19 07:12:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:12:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:12:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:12:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:12:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-19 07:12:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-19 07:12:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-19 07:12:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-19 07:12:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-19 07:12:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-19 07:12:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-19 07:12:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-19 07:12:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:12:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:12:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-19 07:12:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-19 07:12:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-19 07:12:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-19 07:12:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-19 07:12:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-19 07:12:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-19 07:12:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-19 07:12:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-19 07:12:02,678 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-19 07:12:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-19 07:12:02,678 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-19 07:12:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-19 07:12:02,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-19 07:12:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:12:02,679 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:12:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-19 07:12:02,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-19 07:12:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-19 07:12:02,679 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-19 07:12:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:12:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:12:02,680 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:12:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-19 07:12:02,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-19 07:12:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:12:02,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:12:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-19 07:12:02,681 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-19 07:12:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:12:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-19 07:12:02,681 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-19 07:12:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-19 07:12:02,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-19 07:12:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-19 07:12:02,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-19 07:12:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-19 07:12:02,688 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-19 07:12:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-19 07:12:02,692 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-19 07:12:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-19 07:12:02,692 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-19 07:12:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:12:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-19 07:12:02,693 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-19 07:12:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-19 07:12:02,693 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-19 07:12:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-19 07:12:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-19 07:12:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 07:12:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 07:12:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-19 07:12:02,696 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-19 07:12:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 07:12:02,696 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 07:12:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-19 07:12:02,696 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-19 07:12:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:12:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:12:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-19 07:12:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-19 07:12:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:12:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:12:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 07:12:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 07:12:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-19 07:12:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-19 07:12:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 07:12:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 07:12:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-19 07:12:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-19 07:12:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-19 07:12:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-19 07:12:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-19 07:12:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-19 07:12:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-19 07:12:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-19 07:12:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-19 07:12:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-19 07:12:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-19 07:12:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-19 07:12:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-19 07:12:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-19 07:12:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-19 07:12:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-19 07:12:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 07:12:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 07:12:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 07:12:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 07:12:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:12:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:12:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-19 07:12:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-19 07:12:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-19 07:12:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-19 07:12:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-19 07:12:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-19 07:12:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-19 07:12:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-19 07:12:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-19 07:12:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-19 07:12:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-19 07:12:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-19 07:12:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:12:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:12:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-19 07:12:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-19 07:12:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 07:12:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 07:12:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-19 07:12:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-19 07:12:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:12:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:12:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-19 07:12:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-19 07:12:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-19 07:12:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-19 07:12:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:12:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-19 07:12:02,727 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-19 07:12:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:12:02,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:12:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-19 07:12:02,727 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-19 07:12:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-19 07:12:02,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-19 07:12:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-19 07:12:02,728 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-19 07:12:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:12:02,728 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:12:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-19 07:12:02,729 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-19 07:12:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:12:02,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:12:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-19 07:12:02,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-19 07:12:02,730 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-19 07:12:02,730 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-19 07:12:02,730 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 07:12:02,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 07:12:02,730 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-19 07:12:02,731 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-19 07:12:02,731 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-19 07:12:02,731 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-19 07:12:02,731 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-19 07:12:02,731 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-19 07:12:02,731 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-19 07:12:02,732 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-19 07:12:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 07:12:02,732 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 07:12:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_17 [2022-11-19 07:12:02,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_17 [2022-11-19 07:12:02,737 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-19 07:12:02,737 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-19 07:12:02,737 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-19 07:12:02,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-19 07:12:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-19 07:12:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-19 07:12:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:12:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:12:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 07:12:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 07:12:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:12:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:12:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 07:12:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 07:12:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-19 07:12:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-19 07:12:02,740 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-19 07:12:02,740 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-19 07:12:02,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:12:02,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:12:02,740 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-19 07:12:02,740 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-19 07:12:02,741 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:12:02,741 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:12:02,741 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-19 07:12:02,741 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-19 07:12:02,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-19 07:12:02,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-19 07:12:02,742 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 07:12:02,742 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 07:12:02,742 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-19 07:12:02,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:12:02,742 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-19 07:12:02,743 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-19 07:12:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-19 07:12:02,743 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-19 07:12:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:12:02,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:12:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 07:12:05,812 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:12:05,818 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:12:07,607 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:13:13,642 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:13:14,186 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:13:28,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:13:28,344 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-19 07:13:28,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:13:28 BoogieIcfgContainer [2022-11-19 07:13:28,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:13:28,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:13:28,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:13:28,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:13:28,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:11:45" (1/3) ... [2022-11-19 07:13:28,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b60a6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:13:28, skipping insertion in model container [2022-11-19 07:13:28,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:58" (2/3) ... [2022-11-19 07:13:28,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b60a6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:13:28, skipping insertion in model container [2022-11-19 07:13:28,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:13:28" (3/3) ... [2022-11-19 07:13:28,374 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-19 07:13:28,399 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:13:28,399 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:13:28,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:13:28,624 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;@68cf6f91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:13:28,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:13:28,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 6724 states, 4307 states have (on average 1.3420013930810308) internal successors, (5780), 4399 states have internal predecessors, (5780), 2173 states have call successors, (2173), 246 states have call predecessors, (2173), 245 states have return successors, (2167), 2159 states have call predecessors, (2167), 2167 states have call successors, (2167) [2022-11-19 07:13:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-19 07:13:28,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:13:28,682 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:13:28,683 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:13:28,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:13:28,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1646825508, now seen corresponding path program 1 times [2022-11-19 07:13:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:13:28,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491090128] [2022-11-19 07:13:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:13:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:13:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:13:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2022-11-19 07:13:31,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:13:31,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491090128] [2022-11-19 07:13:31,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491090128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:13:31,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:13:31,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:13:31,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941727412] [2022-11-19 07:13:31,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:13:31,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:13:31,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:13:31,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:13:31,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:13:31,541 INFO L87 Difference]: Start difference. First operand has 6724 states, 4307 states have (on average 1.3420013930810308) internal successors, (5780), 4399 states have internal predecessors, (5780), 2173 states have call successors, (2173), 246 states have call predecessors, (2173), 245 states have return successors, (2167), 2159 states have call predecessors, (2167), 2167 states have call successors, (2167) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 07:13:41,513 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 [] [2022-11-19 07:13:48,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:13:51,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:13:54,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:13:57,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:13:59,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:01,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:03,697 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 [] [2022-11-19 07:14:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:14:04,714 INFO L93 Difference]: Finished difference Result 19570 states and 29518 transitions. [2022-11-19 07:14:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:14:04,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 251 [2022-11-19 07:14:04,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:14:04,903 INFO L225 Difference]: With dead ends: 19570 [2022-11-19 07:14:04,904 INFO L226 Difference]: Without dead ends: 12883 [2022-11-19 07:14:04,987 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 [2022-11-19 07:14:04,997 INFO L413 NwaCegarLoop]: 11304 mSDtfsCounter, 9288 mSDsluCounter, 9175 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9289 SdHoareTripleChecker+Valid, 20479 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:14:04,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9289 Valid, 20479 Invalid, 1806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1795 Invalid, 4 Unknown, 0 Unchecked, 32.0s Time] [2022-11-19 07:14:05,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12883 states. [2022-11-19 07:14:07,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12883 to 12875. [2022-11-19 07:14:07,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12875 states, 8211 states have (on average 1.3363780294726586) internal successors, (10973), 8391 states have internal predecessors, (10973), 4183 states have call successors, (4183), 481 states have call predecessors, (4183), 480 states have return successors, (4180), 4163 states have call predecessors, (4180), 4179 states have call successors, (4180) [2022-11-19 07:14:07,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12875 states to 12875 states and 19336 transitions. [2022-11-19 07:14:07,241 INFO L78 Accepts]: Start accepts. Automaton has 12875 states and 19336 transitions. Word has length 251 [2022-11-19 07:14:07,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:14:07,248 INFO L495 AbstractCegarLoop]: Abstraction has 12875 states and 19336 transitions. [2022-11-19 07:14:07,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 07:14:07,249 INFO L276 IsEmpty]: Start isEmpty. Operand 12875 states and 19336 transitions. [2022-11-19 07:14:07,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-19 07:14:07,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:14:07,281 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 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] [2022-11-19 07:14:07,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:14:07,282 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:14:07,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:14:07,283 INFO L85 PathProgramCache]: Analyzing trace with hash -842198900, now seen corresponding path program 1 times [2022-11-19 07:14:07,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:14:07,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340459468] [2022-11-19 07:14:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:07,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:14:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2022-11-19 07:14:12,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:14:12,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340459468] [2022-11-19 07:14:12,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340459468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:14:12,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:14:12,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:14:12,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391128977] [2022-11-19 07:14:12,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:14:12,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:14:12,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:14:12,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:14:12,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:14:12,600 INFO L87 Difference]: Start difference. First operand 12875 states and 19336 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 07:14:19,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:27,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:38,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:41,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:47,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:49,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:51,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:53,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:55,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:14:58,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:15:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:15:00,124 INFO L93 Difference]: Finished difference Result 25278 states and 37933 transitions. [2022-11-19 07:15:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:15:00,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 293 [2022-11-19 07:15:00,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:15:00,447 INFO L225 Difference]: With dead ends: 25278 [2022-11-19 07:15:00,448 INFO L226 Difference]: Without dead ends: 25276 [2022-11-19 07:15:00,487 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 [2022-11-19 07:15:00,488 INFO L413 NwaCegarLoop]: 11241 mSDtfsCounter, 9338 mSDsluCounter, 31601 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9341 SdHoareTripleChecker+Valid, 42842 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:15:00,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9341 Valid, 42842 Invalid, 3577 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3568 Invalid, 7 Unknown, 0 Unchecked, 46.2s Time] [2022-11-19 07:15:00,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25276 states. [2022-11-19 07:15:03,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25276 to 25264. [2022-11-19 07:15:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25264 states, 16066 states have (on average 1.3343084775301879) internal successors, (21437), 16427 states have internal predecessors, (21437), 8242 states have call successors, (8242), 957 states have call predecessors, (8242), 955 states have return successors, (8237), 8200 states have call predecessors, (8237), 8234 states have call successors, (8237) [2022-11-19 07:15:03,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25264 states to 25264 states and 37916 transitions. [2022-11-19 07:15:03,376 INFO L78 Accepts]: Start accepts. Automaton has 25264 states and 37916 transitions. Word has length 293 [2022-11-19 07:15:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:15:03,380 INFO L495 AbstractCegarLoop]: Abstraction has 25264 states and 37916 transitions. [2022-11-19 07:15:03,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 07:15:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 25264 states and 37916 transitions. [2022-11-19 07:15:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-19 07:15:03,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:15:03,401 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 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] [2022-11-19 07:15:03,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:15:03,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:15:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:15:03,402 INFO L85 PathProgramCache]: Analyzing trace with hash 44616100, now seen corresponding path program 1 times [2022-11-19 07:15:03,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:15:03,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806825312] [2022-11-19 07:15:03,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:03,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:15:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:15:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2254 trivial. 0 not checked. [2022-11-19 07:15:08,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:15:08,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806825312] [2022-11-19 07:15:08,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806825312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:15:08,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:15:08,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:15:08,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962442841] [2022-11-19 07:15:08,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:15:08,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:15:08,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:15:08,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:15:08,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:15:08,423 INFO L87 Difference]: Start difference. First operand 25264 states and 37916 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-19 07:15:13,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:15:23,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:15:30,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:15:37,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:15:40,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:15:46,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:15:48,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:15:51,479 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 [] [2022-11-19 07:15:54,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:15:54,872 INFO L93 Difference]: Finished difference Result 31508 states and 47269 transitions. [2022-11-19 07:15:54,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:15:54,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 301 [2022-11-19 07:15:54,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:15:55,145 INFO L225 Difference]: With dead ends: 31508 [2022-11-19 07:15:55,145 INFO L226 Difference]: Without dead ends: 31504 [2022-11-19 07:15:55,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:15:55,178 INFO L413 NwaCegarLoop]: 11244 mSDtfsCounter, 9333 mSDsluCounter, 31601 mSDsCounter, 0 mSdLazyCounter, 3572 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9335 SdHoareTripleChecker+Valid, 42845 SdHoareTripleChecker+Invalid, 3580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3572 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:15:55,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9335 Valid, 42845 Invalid, 3580 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3572 Invalid, 6 Unknown, 0 Unchecked, 45.1s Time] [2022-11-19 07:15:55,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31504 states. [2022-11-19 07:15:58,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31504 to 31494. [2022-11-19 07:15:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31494 states, 20012 states have (on average 1.33374975014991) internal successors, (26691), 20463 states have internal predecessors, (26691), 10284 states have call successors, (10284), 1201 states have call predecessors, (10284), 1197 states have return successors, (10276), 10230 states have call predecessors, (10276), 10272 states have call successors, (10276) [2022-11-19 07:15:58,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31494 states to 31494 states and 47251 transitions. [2022-11-19 07:15:58,884 INFO L78 Accepts]: Start accepts. Automaton has 31494 states and 47251 transitions. Word has length 301 [2022-11-19 07:15:58,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:15:58,890 INFO L495 AbstractCegarLoop]: Abstraction has 31494 states and 47251 transitions. [2022-11-19 07:15:58,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-19 07:15:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand 31494 states and 47251 transitions. [2022-11-19 07:15:58,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-11-19 07:15:58,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:15:58,907 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 3, 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] [2022-11-19 07:15:58,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:15:58,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:15:58,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:15:58,908 INFO L85 PathProgramCache]: Analyzing trace with hash -601111956, now seen corresponding path program 1 times [2022-11-19 07:15:58,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:15:58,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307288797] [2022-11-19 07:15:58,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:58,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:15:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:16:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2255 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2251 trivial. 0 not checked. [2022-11-19 07:16:03,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:16:03,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307288797] [2022-11-19 07:16:03,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307288797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:16:03,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:16:03,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:16:03,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609153472] [2022-11-19 07:16:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:16:03,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:16:03,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:16:03,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:16:03,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:16:03,491 INFO L87 Difference]: Start difference. First operand 31494 states and 47251 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:16:06,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:17,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:18,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:20,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:25,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:27,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:28,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:30,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:33,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:35,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:37,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:39,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:48,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:51,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:55,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:16:57,221 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 [] [2022-11-19 07:16:58,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:16:58,246 INFO L93 Difference]: Finished difference Result 38109 states and 57184 transitions. [2022-11-19 07:16:58,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:16:58,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 303 [2022-11-19 07:16:58,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:16:58,538 INFO L225 Difference]: With dead ends: 38109 [2022-11-19 07:16:58,538 INFO L226 Difference]: Without dead ends: 38065 [2022-11-19 07:16:58,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:16:58,576 INFO L413 NwaCegarLoop]: 11342 mSDtfsCounter, 9914 mSDsluCounter, 31797 mSDsCounter, 0 mSdLazyCounter, 3573 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9915 SdHoareTripleChecker+Valid, 43139 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3573 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:16:58,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9915 Valid, 43139 Invalid, 3583 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3573 Invalid, 8 Unknown, 0 Unchecked, 53.2s Time] [2022-11-19 07:16:58,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38065 states. [2022-11-19 07:17:01,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38065 to 38060. [2022-11-19 07:17:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38060 states, 24221 states have (on average 1.33503984145989) internal successors, (32336), 24762 states have internal predecessors, (32336), 12399 states have call successors, (12399), 1443 states have call predecessors, (12399), 1439 states have return successors, (12392), 12336 states have call predecessors, (12392), 12387 states have call successors, (12392) [2022-11-19 07:17:02,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38060 states to 38060 states and 57127 transitions. [2022-11-19 07:17:02,462 INFO L78 Accepts]: Start accepts. Automaton has 38060 states and 57127 transitions. Word has length 303 [2022-11-19 07:17:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:17:02,463 INFO L495 AbstractCegarLoop]: Abstraction has 38060 states and 57127 transitions. [2022-11-19 07:17:02,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:17:02,464 INFO L276 IsEmpty]: Start isEmpty. Operand 38060 states and 57127 transitions. [2022-11-19 07:17:02,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-11-19 07:17:02,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:02,558 INFO L195 NwaCegarLoop]: trace histogram [29, 25, 25, 25, 25, 25, 25, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:17:02,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:17:02,559 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:02,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:02,560 INFO L85 PathProgramCache]: Analyzing trace with hash 29449907, now seen corresponding path program 1 times [2022-11-19 07:17:02,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:02,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59508113] [2022-11-19 07:17:02,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:02,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2647 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2022-11-19 07:17:04,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:04,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59508113] [2022-11-19 07:17:04,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59508113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:04,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:17:04,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:17:04,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101179614] [2022-11-19 07:17:04,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:04,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:17:04,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:17:04,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:17:04,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:04,795 INFO L87 Difference]: Start difference. First operand 38060 states and 57127 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 07:17:17,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:19,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:22,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:25,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:27,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:32,936 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 [] [2022-11-19 07:17:35,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:17:35,158 INFO L93 Difference]: Finished difference Result 97869 states and 146945 transitions. [2022-11-19 07:17:35,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:17:35,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 411 [2022-11-19 07:17:35,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:17:35,764 INFO L225 Difference]: With dead ends: 97869 [2022-11-19 07:17:35,764 INFO L226 Difference]: Without dead ends: 59856 [2022-11-19 07:17:36,108 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 [2022-11-19 07:17:36,110 INFO L413 NwaCegarLoop]: 11330 mSDtfsCounter, 8539 mSDsluCounter, 9146 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8540 SdHoareTripleChecker+Valid, 20476 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:17:36,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8540 Valid, 20476 Invalid, 1904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1882 Invalid, 3 Unknown, 0 Unchecked, 27.7s Time] [2022-11-19 07:17:36,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59856 states. [2022-11-19 07:17:40,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59856 to 59826. [2022-11-19 07:17:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59826 states, 38209 states have (on average 1.3329058598759456) internal successors, (50929), 39038 states have internal predecessors, (50929), 19417 states have call successors, (19417), 2206 states have call predecessors, (19417), 2199 states have return successors, (19414), 19305 states have call predecessors, (19414), 19405 states have call successors, (19414) [2022-11-19 07:17:41,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59826 states to 59826 states and 89760 transitions. [2022-11-19 07:17:41,381 INFO L78 Accepts]: Start accepts. Automaton has 59826 states and 89760 transitions. Word has length 411 [2022-11-19 07:17:41,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:17:41,383 INFO L495 AbstractCegarLoop]: Abstraction has 59826 states and 89760 transitions. [2022-11-19 07:17:41,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 07:17:41,384 INFO L276 IsEmpty]: Start isEmpty. Operand 59826 states and 89760 transitions. [2022-11-19 07:17:41,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-11-19 07:17:41,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:41,556 INFO L195 NwaCegarLoop]: trace histogram [28, 23, 23, 23, 23, 23, 23, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:17:41,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:17:41,557 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:41,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:41,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1865427785, now seen corresponding path program 1 times [2022-11-19 07:17:41,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:41,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306474457] [2022-11-19 07:17:41,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:41,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:43,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2355 trivial. 0 not checked. [2022-11-19 07:17:43,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:43,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306474457] [2022-11-19 07:17:43,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306474457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:43,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:17:43,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:17:43,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262571696] [2022-11-19 07:17:43,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:43,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:17:43,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:17:43,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:17:43,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:43,962 INFO L87 Difference]: Start difference. First operand 59826 states and 89760 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-19 07:17:47,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:51,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:17:58,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:03,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:07,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:09,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:11,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:15,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:18,023 INFO L93 Difference]: Finished difference Result 97867 states and 146582 transitions. [2022-11-19 07:18:18,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:18,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 456 [2022-11-19 07:18:18,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:18,442 INFO L225 Difference]: With dead ends: 97867 [2022-11-19 07:18:18,442 INFO L226 Difference]: Without dead ends: 38088 [2022-11-19 07:18:18,792 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 [2022-11-19 07:18:18,793 INFO L413 NwaCegarLoop]: 12790 mSDtfsCounter, 6415 mSDsluCounter, 9092 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6415 SdHoareTripleChecker+Valid, 21882 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:18,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6415 Valid, 21882 Invalid, 1999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1987 Invalid, 5 Unknown, 0 Unchecked, 31.8s Time] [2022-11-19 07:18:18,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38088 states. [2022-11-19 07:18:21,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38088 to 38053. [2022-11-19 07:18:21,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38053 states, 24277 states have (on average 1.3295300078263377) internal successors, (32277), 24793 states have internal predecessors, (32277), 12270 states have call successors, (12270), 1513 states have call predecessors, (12270), 1505 states have return successors, (12265), 12192 states have call predecessors, (12265), 12262 states have call successors, (12265) [2022-11-19 07:18:22,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38053 states to 38053 states and 56812 transitions. [2022-11-19 07:18:22,197 INFO L78 Accepts]: Start accepts. Automaton has 38053 states and 56812 transitions. Word has length 456 [2022-11-19 07:18:22,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:22,198 INFO L495 AbstractCegarLoop]: Abstraction has 38053 states and 56812 transitions. [2022-11-19 07:18:22,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-19 07:18:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 38053 states and 56812 transitions. [2022-11-19 07:18:22,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-11-19 07:18:22,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:22,224 INFO L195 NwaCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:22,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:18:22,225 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:22,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:22,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1538003736, now seen corresponding path program 1 times [2022-11-19 07:18:22,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:22,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633595114] [2022-11-19 07:18:22,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:22,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2022-11-19 07:18:23,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:23,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633595114] [2022-11-19 07:18:23,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633595114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:23,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:23,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:23,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488541874] [2022-11-19 07:18:23,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:23,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:23,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:23,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:23,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:23,985 INFO L87 Difference]: Start difference. First operand 38053 states and 56812 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-19 07:18:28,121 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 [] [2022-11-19 07:18:45,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:48,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:50,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:53,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:54,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:58,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:58,452 INFO L93 Difference]: Finished difference Result 87759 states and 131121 transitions. [2022-11-19 07:18:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:58,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 458 [2022-11-19 07:18:58,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:58,748 INFO L225 Difference]: With dead ends: 87759 [2022-11-19 07:18:58,749 INFO L226 Difference]: Without dead ends: 49847 [2022-11-19 07:18:59,075 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 [2022-11-19 07:18:59,076 INFO L413 NwaCegarLoop]: 16975 mSDtfsCounter, 8533 mSDsluCounter, 9144 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8534 SdHoareTripleChecker+Valid, 26119 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2561 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:59,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8534 Valid, 26119 Invalid, 2581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2561 Invalid, 5 Unknown, 0 Unchecked, 32.2s Time] [2022-11-19 07:18:59,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49847 states. [2022-11-19 07:19:02,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49847 to 49819. [2022-11-19 07:19:02,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49819 states, 31807 states have (on average 1.3289213066306158) internal successors, (42269), 32490 states have internal predecessors, (42269), 16061 states have call successors, (16061), 1962 states have call predecessors, (16061), 1950 states have return successors, (16058), 15946 states have call predecessors, (16058), 16053 states have call successors, (16058) [2022-11-19 07:19:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49819 states to 49819 states and 74388 transitions. [2022-11-19 07:19:03,499 INFO L78 Accepts]: Start accepts. Automaton has 49819 states and 74388 transitions. Word has length 458 [2022-11-19 07:19:03,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:03,500 INFO L495 AbstractCegarLoop]: Abstraction has 49819 states and 74388 transitions. [2022-11-19 07:19:03,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-19 07:19:03,501 INFO L276 IsEmpty]: Start isEmpty. Operand 49819 states and 74388 transitions. [2022-11-19 07:19:03,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2022-11-19 07:19:03,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:03,524 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:03,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:19:03,525 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:03,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:03,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1132248665, now seen corresponding path program 1 times [2022-11-19 07:19:03,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:03,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755863053] [2022-11-19 07:19:03,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:03,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3201 trivial. 0 not checked. [2022-11-19 07:19:09,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:09,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755863053] [2022-11-19 07:19:09,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755863053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:09,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:09,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:19:09,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144884729] [2022-11-19 07:19:09,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:09,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:19:09,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:09,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:19:09,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:19:09,777 INFO L87 Difference]: Start difference. First operand 49819 states and 74388 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-19 07:19:15,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:17,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:19,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:35,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:39,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:41,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:43,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:46,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:19:54,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:54,741 INFO L93 Difference]: Finished difference Result 117655 states and 177433 transitions. [2022-11-19 07:19:54,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:19:54,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 520 [2022-11-19 07:19:54,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:55,279 INFO L225 Difference]: With dead ends: 117655 [2022-11-19 07:19:55,279 INFO L226 Difference]: Without dead ends: 67977 [2022-11-19 07:19:55,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:19:55,498 INFO L413 NwaCegarLoop]: 11700 mSDtfsCounter, 3649 mSDsluCounter, 20888 mSDsCounter, 0 mSdLazyCounter, 3181 mSolverCounterSat, 994 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4153 SdHoareTripleChecker+Valid, 32588 SdHoareTripleChecker+Invalid, 4180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 994 IncrementalHoareTripleChecker+Valid, 3181 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:55,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4153 Valid, 32588 Invalid, 4180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [994 Valid, 3181 Invalid, 5 Unknown, 0 Unchecked, 41.6s Time] [2022-11-19 07:19:55,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67977 states. [2022-11-19 07:19:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67977 to 49829. [2022-11-19 07:19:59,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49829 states, 31817 states have (on average 1.3288179275230223) internal successors, (42279), 32500 states have internal predecessors, (42279), 16061 states have call successors, (16061), 1962 states have call predecessors, (16061), 1950 states have return successors, (16058), 15946 states have call predecessors, (16058), 16053 states have call successors, (16058) [2022-11-19 07:19:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49829 states to 49829 states and 74398 transitions. [2022-11-19 07:19:59,937 INFO L78 Accepts]: Start accepts. Automaton has 49829 states and 74398 transitions. Word has length 520 [2022-11-19 07:19:59,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:59,938 INFO L495 AbstractCegarLoop]: Abstraction has 49829 states and 74398 transitions. [2022-11-19 07:19:59,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-19 07:19:59,939 INFO L276 IsEmpty]: Start isEmpty. Operand 49829 states and 74398 transitions. [2022-11-19 07:19:59,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2022-11-19 07:19:59,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:59,963 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 15, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:59,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:19:59,964 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:59,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:59,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1813513605, now seen corresponding path program 1 times [2022-11-19 07:19:59,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:59,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268881935] [2022-11-19 07:19:59,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:59,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:04,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3318 trivial. 0 not checked. [2022-11-19 07:20:04,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:04,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268881935] [2022-11-19 07:20:04,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268881935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:04,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:04,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:20:04,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974044997] [2022-11-19 07:20:04,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:04,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:20:04,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:04,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:20:04,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:20:04,740 INFO L87 Difference]: Start difference. First operand 49829 states and 74398 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-19 07:20:09,430 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 [] [2022-11-19 07:20:12,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:24,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:26,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:28,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:30,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:31,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:33,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:36,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:41,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:45,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:20:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:50,622 INFO L93 Difference]: Finished difference Result 72252 states and 107921 transitions. [2022-11-19 07:20:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:20:50,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 537 [2022-11-19 07:20:50,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:51,173 INFO L225 Difference]: With dead ends: 72252 [2022-11-19 07:20:51,173 INFO L226 Difference]: Without dead ends: 72248 [2022-11-19 07:20:51,205 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 [2022-11-19 07:20:51,205 INFO L413 NwaCegarLoop]: 11283 mSDtfsCounter, 9629 mSDsluCounter, 31685 mSDsCounter, 0 mSdLazyCounter, 3554 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9631 SdHoareTripleChecker+Valid, 42968 SdHoareTripleChecker+Invalid, 3562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3554 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:51,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9631 Valid, 42968 Invalid, 3562 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3554 Invalid, 6 Unknown, 0 Unchecked, 43.1s Time] [2022-11-19 07:20:51,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72248 states. [2022-11-19 07:20:56,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72248 to 72209. [2022-11-19 07:20:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72209 states, 46098 states have (on average 1.3292550652956745) internal successors, (61276), 47094 states have internal predecessors, (61276), 23298 states have call successors, (23298), 2831 states have call predecessors, (23298), 2812 states have return successors, (23294), 23127 states have call predecessors, (23294), 23286 states have call successors, (23294) [2022-11-19 07:20:57,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72209 states to 72209 states and 107868 transitions. [2022-11-19 07:20:57,136 INFO L78 Accepts]: Start accepts. Automaton has 72209 states and 107868 transitions. Word has length 537 [2022-11-19 07:20:57,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:57,138 INFO L495 AbstractCegarLoop]: Abstraction has 72209 states and 107868 transitions. [2022-11-19 07:20:57,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-19 07:20:57,138 INFO L276 IsEmpty]: Start isEmpty. Operand 72209 states and 107868 transitions. [2022-11-19 07:20:57,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2022-11-19 07:20:57,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:57,169 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 15, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:57,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:20:57,170 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:57,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:57,171 INFO L85 PathProgramCache]: Analyzing trace with hash 223744666, now seen corresponding path program 1 times [2022-11-19 07:20:57,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:57,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106792918] [2022-11-19 07:20:57,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:57,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:01,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3320 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3318 trivial. 0 not checked. [2022-11-19 07:21:01,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:01,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106792918] [2022-11-19 07:21:01,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106792918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:01,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:01,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:21:01,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754345226] [2022-11-19 07:21:01,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:01,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:21:01,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:01,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:21:01,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:21:01,139 INFO L87 Difference]: Start difference. First operand 72209 states and 107868 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-19 07:21:06,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:11,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:22,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:27,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:29,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:32,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:43,047 INFO L93 Difference]: Finished difference Result 94628 states and 141387 transitions. [2022-11-19 07:21:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:21:43,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 542 [2022-11-19 07:21:43,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:43,623 INFO L225 Difference]: With dead ends: 94628 [2022-11-19 07:21:43,624 INFO L226 Difference]: Without dead ends: 94569 [2022-11-19 07:21:43,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:21:43,679 INFO L413 NwaCegarLoop]: 11286 mSDtfsCounter, 9619 mSDsluCounter, 31687 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9620 SdHoareTripleChecker+Valid, 42973 SdHoareTripleChecker+Invalid, 3552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:43,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9620 Valid, 42973 Invalid, 3552 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3545 Invalid, 5 Unknown, 0 Unchecked, 38.4s Time] [2022-11-19 07:21:43,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94569 states. [2022-11-19 07:21:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94569 to 94529. [2022-11-19 07:21:50,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94529 states, 60363 states have (on average 1.329274555605255) internal successors, (80239), 61658 states have internal predecessors, (80239), 30494 states have call successors, (30494), 3691 states have call predecessors, (30494), 3671 states have return successors, (30493), 30287 states have call predecessors, (30493), 30482 states have call successors, (30493) [2022-11-19 07:21:51,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94529 states to 94529 states and 141226 transitions. [2022-11-19 07:21:51,850 INFO L78 Accepts]: Start accepts. Automaton has 94529 states and 141226 transitions. Word has length 542 [2022-11-19 07:21:51,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:51,852 INFO L495 AbstractCegarLoop]: Abstraction has 94529 states and 141226 transitions. [2022-11-19 07:21:51,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-19 07:21:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand 94529 states and 141226 transitions. [2022-11-19 07:21:51,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2022-11-19 07:21:51,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:51,982 INFO L195 NwaCegarLoop]: trace histogram [35, 25, 25, 25, 25, 25, 25, 15, 15, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:51,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:21:51,983 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:21:51,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash 748086539, now seen corresponding path program 1 times [2022-11-19 07:21:51,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:51,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016819767] [2022-11-19 07:21:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:51,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:53,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3470 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3450 trivial. 0 not checked. [2022-11-19 07:21:53,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:53,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016819767] [2022-11-19 07:21:53,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016819767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:53,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:53,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:53,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893213859] [2022-11-19 07:21:53,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:53,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:53,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:53,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:53,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:53,926 INFO L87 Difference]: Start difference. First operand 94529 states and 141226 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 3 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (90), 3 states have call predecessors, (90), 3 states have call successors, (90)