./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-wireless-ipw2x00-ipw2100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a726a5193e63c1219bd87d1639e8de22edb997e98056d7c45179f71e6a8d2119 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:35:26,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:35:26,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:35:26,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:35:26,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:35:26,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:35:26,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:35:26,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:35:26,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:35:26,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:35:26,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:35:26,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:35:26,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:35:26,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:35:26,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:35:26,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:35:26,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:35:26,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:35:26,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:35:26,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:35:26,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:35:26,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:35:26,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:35:26,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:35:26,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:35:26,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:35:26,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:35:26,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:35:26,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:35:26,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:35:26,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:35:26,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:35:26,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:35:26,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:35:26,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:35:26,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:35:26,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:35:26,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:35:26,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:35:26,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:35:26,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:35:26,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:35:26,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:35:26,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:35:26,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:35:26,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:35:26,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:35:26,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:35:26,865 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:35:26,866 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:35:26,866 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:35:26,866 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:35:26,867 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:35:26,868 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:35:26,868 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:35:26,868 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:35:26,869 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:35:26,869 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:35:26,869 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:35:26,869 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:35:26,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:35:26,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:35:26,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:35:26,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:35:26,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:35:26,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:35:26,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:35:26,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:35:26,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:35:26,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:35:26,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:35:26,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:35:26,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:35:26,875 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:35:26,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:35:26,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:35:26,876 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:35:26,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:35:26,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:35:26,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:35:26,877 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_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a726a5193e63c1219bd87d1639e8de22edb997e98056d7c45179f71e6a8d2119 [2022-11-22 01:35:27,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:35:27,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:35:27,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:35:27,260 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:35:27,260 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:35:27,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-22 01:35:30,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:35:31,250 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:35:31,251 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-22 01:35:31,349 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/data/c30e8171f/3acd96c9b36d4462a762a7bc3c176dcc/FLAG2c238c20b [2022-11-22 01:35:31,368 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/data/c30e8171f/3acd96c9b36d4462a762a7bc3c176dcc [2022-11-22 01:35:31,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:35:31,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:35:31,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:35:31,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:35:31,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:35:31,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:35:31" (1/1) ... [2022-11-22 01:35:31,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788ccdf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:31, skipping insertion in model container [2022-11-22 01:35:31,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:35:31" (1/1) ... [2022-11-22 01:35:31,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:35:31,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:35:38,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769201,769214] [2022-11-22 01:35:38,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769367,769380] [2022-11-22 01:35:38,777 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769531,769544] [2022-11-22 01:35:38,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769696,769709] [2022-11-22 01:35:38,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:35:38,936 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:35:39,746 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769201,769214] [2022-11-22 01:35:39,746 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769367,769380] [2022-11-22 01:35:39,747 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769531,769544] [2022-11-22 01:35:39,747 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769696,769709] [2022-11-22 01:35:39,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:35:40,087 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:35:40,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40 WrapperNode [2022-11-22 01:35:40,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:35:40,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:35:40,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:35:40,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:35:40,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:40,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:40,765 INFO L138 Inliner]: procedures = 688, calls = 11718, calls flagged for inlining = 369, calls inlined = 261, statements flattened = 13033 [2022-11-22 01:35:40,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:35:40,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:35:40,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:35:40,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:35:40,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:40,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:40,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:40,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:41,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:41,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:41,411 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:41,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:41,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:35:41,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:35:41,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:35:41,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:35:41,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (1/1) ... [2022-11-22 01:35:41,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:35:41,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:35:41,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:35:41,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6fc2dc-2924-4634-8933-5e031da3c918/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:35:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:35:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:35:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:35:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:35:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2022-11-22 01:35:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2022-11-22 01:35:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2022-11-22 01:35:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2022-11-22 01:35:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2022-11-22 01:35:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2022-11-22 01:35:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:35:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:35:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:35:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:35:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-22 01:35:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-22 01:35:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2022-11-22 01:35:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2022-11-22 01:35:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2022-11-22 01:35:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2022-11-22 01:35:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:35:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:35:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 01:35:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 01:35:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2022-11-22 01:35:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2022-11-22 01:35:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2022-11-22 01:35:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2022-11-22 01:35:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:35:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:35:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:35:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:35:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:35:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:35:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:35:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:35:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:35:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:35:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:35:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:35:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2022-11-22 01:35:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2022-11-22 01:35:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:35:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:35:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:35:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:35:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:35:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:35:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-11-22 01:35:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-11-22 01:35:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2022-11-22 01:35:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2022-11-22 01:35:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2022-11-22 01:35:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2022-11-22 01:35:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:35:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:35:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:35:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2022-11-22 01:35:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2022-11-22 01:35:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 01:35:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 01:35:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2022-11-22 01:35:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2022-11-22 01:35:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:35:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:35:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2022-11-22 01:35:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2022-11-22 01:35:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2022-11-22 01:35:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2022-11-22 01:35:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:35:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:35:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2022-11-22 01:35:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2022-11-22 01:35:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:35:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:35:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-22 01:35:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-22 01:35:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:35:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:35:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:35:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-22 01:35:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-22 01:35:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:35:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2022-11-22 01:35:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2022-11-22 01:35:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:35:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:35:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2022-11-22 01:35:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2022-11-22 01:35:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:35:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:35:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:35:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2022-11-22 01:35:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2022-11-22 01:35:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2022-11-22 01:35:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2022-11-22 01:35:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:35:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:35:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:35:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:35:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:35:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:35:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:35:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:35:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-22 01:35:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-22 01:35:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-22 01:35:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-22 01:35:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:35:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:35:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2022-11-22 01:35:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2022-11-22 01:35:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:35:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:35:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_action_mutex_of_ipw2100_priv [2022-11-22 01:35:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_action_mutex_of_ipw2100_priv [2022-11-22 01:35:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2022-11-22 01:35:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2022-11-22 01:35:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2022-11-22 01:35:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2022-11-22 01:35:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2022-11-22 01:35:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2022-11-22 01:35:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:35:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:35:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:35:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:35:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:35:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:35:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2022-11-22 01:35:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2022-11-22 01:35:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:35:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:35:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-22 01:35:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-22 01:35:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:35:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:35:41,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:35:41,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-22 01:35:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-22 01:35:41,670 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:35:41,670 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2022-11-22 01:35:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2022-11-22 01:35:41,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:35:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:35:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2022-11-22 01:35:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2022-11-22 01:35:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:35:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:35:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2022-11-22 01:35:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2022-11-22 01:35:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 01:35:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 01:35:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:35:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:35:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2022-11-22 01:35:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2022-11-22 01:35:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2022-11-22 01:35:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2022-11-22 01:35:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-22 01:35:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-22 01:35:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2022-11-22 01:35:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2022-11-22 01:35:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-22 01:35:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-22 01:35:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:35:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:35:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-22 01:35:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-22 01:35:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2022-11-22 01:35:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2022-11-22 01:35:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2022-11-22 01:35:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2022-11-22 01:35:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-22 01:35:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-22 01:35:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:35:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:35:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:35:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:35:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2022-11-22 01:35:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2022-11-22 01:35:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 01:35:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 01:35:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2022-11-22 01:35:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2022-11-22 01:35:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2022-11-22 01:35:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2022-11-22 01:35:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2022-11-22 01:35:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2022-11-22 01:35:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2022-11-22 01:35:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2022-11-22 01:35:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:35:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:35:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2022-11-22 01:35:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2022-11-22 01:35:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_adapter_mutex_of_ipw2100_priv [2022-11-22 01:35:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_adapter_mutex_of_ipw2100_priv [2022-11-22 01:35:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2022-11-22 01:35:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2022-11-22 01:35:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2022-11-22 01:35:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2022-11-22 01:35:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2022-11-22 01:35:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2022-11-22 01:35:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:35:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:35:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2022-11-22 01:35:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2022-11-22 01:35:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2022-11-22 01:35:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2022-11-22 01:35:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:35:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:35:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:35:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:35:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:35:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:35:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2022-11-22 01:35:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2022-11-22 01:35:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 01:35:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 01:35:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-22 01:35:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-22 01:35:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:35:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:35:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:35:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:35:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:35:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2022-11-22 01:35:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2022-11-22 01:35:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:35:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:35:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2022-11-22 01:35:41,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2022-11-22 01:35:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:35:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2022-11-22 01:35:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2022-11-22 01:35:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2022-11-22 01:35:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2022-11-22 01:35:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2022-11-22 01:35:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2022-11-22 01:35:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2022-11-22 01:35:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2022-11-22 01:35:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2022-11-22 01:35:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2022-11-22 01:35:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-22 01:35:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-22 01:35:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:35:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2022-11-22 01:35:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2022-11-22 01:35:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-22 01:35:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-22 01:35:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:35:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:35:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2022-11-22 01:35:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2022-11-22 01:35:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2022-11-22 01:35:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2022-11-22 01:35:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:35:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:35:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2022-11-22 01:35:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2022-11-22 01:35:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:35:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:35:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:35:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:35:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:35:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:35:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2022-11-22 01:35:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2022-11-22 01:35:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2022-11-22 01:35:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2022-11-22 01:35:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2022-11-22 01:35:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2022-11-22 01:35:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-22 01:35:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-22 01:35:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2022-11-22 01:35:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2022-11-22 01:35:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 01:35:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 01:35:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-22 01:35:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-22 01:35:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:35:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:35:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:35:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:35:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-22 01:35:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-22 01:35:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2022-11-22 01:35:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2022-11-22 01:35:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2022-11-22 01:35:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2022-11-22 01:35:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2022-11-22 01:35:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2022-11-22 01:35:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:35:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:35:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:35:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:35:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:35:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2022-11-22 01:35:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2022-11-22 01:35:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:35:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:35:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2022-11-22 01:35:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2022-11-22 01:35:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2022-11-22 01:35:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2022-11-22 01:35:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 01:35:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 01:35:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2022-11-22 01:35:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2022-11-22 01:35:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:35:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:35:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2022-11-22 01:35:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2022-11-22 01:35:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 01:35:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 01:35:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 01:35:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 01:35:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2022-11-22 01:35:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2022-11-22 01:35:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_action_mutex_of_ipw2100_priv [2022-11-22 01:35:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_action_mutex_of_ipw2100_priv [2022-11-22 01:35:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_adapter_mutex_of_ipw2100_priv [2022-11-22 01:35:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_adapter_mutex_of_ipw2100_priv [2022-11-22 01:35:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:35:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:35:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:35:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:35:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 01:35:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 01:35:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:35:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:35:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 01:35:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 01:35:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2022-11-22 01:35:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2022-11-22 01:35:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 01:35:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 01:35:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2022-11-22 01:35:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2022-11-22 01:35:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:35:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2022-11-22 01:35:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2022-11-22 01:35:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2022-11-22 01:35:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2022-11-22 01:35:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:35:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2022-11-22 01:35:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2022-11-22 01:35:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2022-11-22 01:35:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2022-11-22 01:35:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:35:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:35:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-22 01:35:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-22 01:35:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2022-11-22 01:35:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2022-11-22 01:35:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2022-11-22 01:35:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2022-11-22 01:35:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-22 01:35:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-22 01:35:43,045 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:35:43,049 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:35:55,192 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:38:04,446 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:38:04,672 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:38:08,058 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:38:08,059 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:38:08,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:38:08 BoogieIcfgContainer [2022-11-22 01:38:08,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:38:08,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:38:08,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:38:08,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:38:08,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:35:31" (1/3) ... [2022-11-22 01:38:08,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a19c6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:38:08, skipping insertion in model container [2022-11-22 01:38:08,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:35:40" (2/3) ... [2022-11-22 01:38:08,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a19c6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:38:08, skipping insertion in model container [2022-11-22 01:38:08,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:38:08" (3/3) ... [2022-11-22 01:38:08,074 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-22 01:38:08,093 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:38:08,093 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:38:08,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:38:08,208 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;@6d29b937, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:38:08,208 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:38:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 2856 states, 1801 states have (on average 1.3392559689061632) internal successors, (2412), 1816 states have internal predecessors, (2412), 883 states have call successors, (883), 170 states have call predecessors, (883), 169 states have return successors, (877), 876 states have call predecessors, (877), 877 states have call successors, (877) [2022-11-22 01:38:08,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-22 01:38:08,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:08,245 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 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] [2022-11-22 01:38:08,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:38:08,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:08,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1365592981, now seen corresponding path program 1 times [2022-11-22 01:38:08,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:08,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900661499] [2022-11-22 01:38:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:08,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-11-22 01:38:10,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:10,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900661499] [2022-11-22 01:38:10,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900661499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:10,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:10,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:10,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020270169] [2022-11-22 01:38:10,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:10,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:10,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:10,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:10,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:10,399 INFO L87 Difference]: Start difference. First operand has 2856 states, 1801 states have (on average 1.3392559689061632) internal successors, (2412), 1816 states have internal predecessors, (2412), 883 states have call successors, (883), 170 states have call predecessors, (883), 169 states have return successors, (877), 876 states have call predecessors, (877), 877 states have call successors, (877) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:38:19,048 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 [] [2022-11-22 01:38:22,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:28,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:31,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:34,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:34,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:34,799 INFO L93 Difference]: Finished difference Result 8064 states and 11901 transitions. [2022-11-22 01:38:34,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:34,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 185 [2022-11-22 01:38:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:34,853 INFO L225 Difference]: With dead ends: 8064 [2022-11-22 01:38:34,853 INFO L226 Difference]: Without dead ends: 5231 [2022-11-22 01:38:34,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:34,879 INFO L413 NwaCegarLoop]: 4523 mSDtfsCounter, 3481 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3484 SdHoareTripleChecker+Valid, 8277 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:34,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3484 Valid, 8277 Invalid, 772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 754 Invalid, 4 Unknown, 0 Unchecked, 23.9s Time] [2022-11-22 01:38:34,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2022-11-22 01:38:35,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5226. [2022-11-22 01:38:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5226 states, 3303 states have (on average 1.332425068119891) internal successors, (4401), 3333 states have internal predecessors, (4401), 1600 states have call successors, (1600), 321 states have call predecessors, (1600), 320 states have return successors, (1599), 1593 states have call predecessors, (1599), 1596 states have call successors, (1599) [2022-11-22 01:38:35,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5226 states to 5226 states and 7600 transitions. [2022-11-22 01:38:35,324 INFO L78 Accepts]: Start accepts. Automaton has 5226 states and 7600 transitions. Word has length 185 [2022-11-22 01:38:35,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:35,328 INFO L495 AbstractCegarLoop]: Abstraction has 5226 states and 7600 transitions. [2022-11-22 01:38:35,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:38:35,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5226 states and 7600 transitions. [2022-11-22 01:38:35,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-22 01:38:35,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:35,346 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:35,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:38:35,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:38:35,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:35,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1979695056, now seen corresponding path program 1 times [2022-11-22 01:38:35,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:35,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963731939] [2022-11-22 01:38:35,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:35,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:36,929 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-22 01:38:36,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:36,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963731939] [2022-11-22 01:38:36,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963731939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:36,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:36,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:36,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028641982] [2022-11-22 01:38:36,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:36,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:36,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:36,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:36,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:36,933 INFO L87 Difference]: Start difference. First operand 5226 states and 7600 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 01:38:48,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:53,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:57,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:00,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:00,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:00,615 INFO L93 Difference]: Finished difference Result 11385 states and 16563 transitions. [2022-11-22 01:39:00,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:39:00,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 195 [2022-11-22 01:39:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:00,663 INFO L225 Difference]: With dead ends: 11385 [2022-11-22 01:39:00,663 INFO L226 Difference]: Without dead ends: 6192 [2022-11-22 01:39:00,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:39:00,693 INFO L413 NwaCegarLoop]: 4414 mSDtfsCounter, 2455 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 17 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 8160 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:00,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2456 Valid, 8160 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 780 Invalid, 4 Unknown, 0 Unchecked, 23.3s Time] [2022-11-22 01:39:00,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6192 states. [2022-11-22 01:39:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6192 to 6174. [2022-11-22 01:39:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6174 states, 3969 states have (on average 1.3396321491559586) internal successors, (5317), 3996 states have internal predecessors, (5317), 1824 states have call successors, (1824), 380 states have call predecessors, (1824), 378 states have return successors, (1822), 1814 states have call predecessors, (1822), 1820 states have call successors, (1822) [2022-11-22 01:39:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6174 states to 6174 states and 8963 transitions. [2022-11-22 01:39:01,057 INFO L78 Accepts]: Start accepts. Automaton has 6174 states and 8963 transitions. Word has length 195 [2022-11-22 01:39:01,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:01,058 INFO L495 AbstractCegarLoop]: Abstraction has 6174 states and 8963 transitions. [2022-11-22 01:39:01,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 01:39:01,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6174 states and 8963 transitions. [2022-11-22 01:39:01,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-22 01:39:01,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:01,064 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:39:01,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:39:01,065 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:39:01,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:01,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1249998903, now seen corresponding path program 1 times [2022-11-22 01:39:01,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:01,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995494080] [2022-11-22 01:39:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:01,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:02,327 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-22 01:39:02,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:02,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995494080] [2022-11-22 01:39:02,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995494080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:02,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:02,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:39:02,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023175057] [2022-11-22 01:39:02,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:02,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:39:02,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:39:02,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:39:02,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:39:02,330 INFO L87 Difference]: Start difference. First operand 6174 states and 8963 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 01:39:06,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:39:09,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:39:11,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:13,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:18,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:21,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:39:23,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:26,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:28,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:30,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:31,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:31,649 INFO L93 Difference]: Finished difference Result 14023 states and 20329 transitions. [2022-11-22 01:39:31,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:39:31,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 193 [2022-11-22 01:39:31,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:31,719 INFO L225 Difference]: With dead ends: 14023 [2022-11-22 01:39:31,720 INFO L226 Difference]: Without dead ends: 7882 [2022-11-22 01:39:31,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:39:31,762 INFO L413 NwaCegarLoop]: 4495 mSDtfsCounter, 3323 mSDsluCounter, 3716 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3326 SdHoareTripleChecker+Valid, 8211 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:31,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3326 Valid, 8211 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 746 Invalid, 6 Unknown, 0 Unchecked, 28.8s Time] [2022-11-22 01:39:31,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7882 states. [2022-11-22 01:39:32,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7882 to 7858. [2022-11-22 01:39:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7858 states, 5032 states have (on average 1.338831478537361) internal successors, (6737), 5081 states have internal predecessors, (6737), 2319 states have call successors, (2319), 509 states have call predecessors, (2319), 504 states have return successors, (2319), 2292 states have call predecessors, (2319), 2315 states have call successors, (2319) [2022-11-22 01:39:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7858 states to 7858 states and 11375 transitions. [2022-11-22 01:39:32,345 INFO L78 Accepts]: Start accepts. Automaton has 7858 states and 11375 transitions. Word has length 193 [2022-11-22 01:39:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:32,347 INFO L495 AbstractCegarLoop]: Abstraction has 7858 states and 11375 transitions. [2022-11-22 01:39:32,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 01:39:32,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7858 states and 11375 transitions. [2022-11-22 01:39:32,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-22 01:39:32,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:32,356 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 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] [2022-11-22 01:39:32,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:39:32,356 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_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:39:32,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:32,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1281303207, now seen corresponding path program 1 times [2022-11-22 01:39:32,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:32,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64116422] [2022-11-22 01:39:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:32,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1135 trivial. 0 not checked. [2022-11-22 01:39:36,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:36,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64116422] [2022-11-22 01:39:36,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64116422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:36,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:36,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:39:36,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729631069] [2022-11-22 01:39:36,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:36,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:39:36,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:39:36,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:39:36,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:39:36,235 INFO L87 Difference]: Start difference. First operand 7858 states and 11375 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 01:39:47,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:39:50,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:39:53,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:57,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:39:59,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:03,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:05,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:10,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:17,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:20,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:22,625 INFO L93 Difference]: Finished difference Result 13578 states and 19628 transitions. [2022-11-22 01:40:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:40:22,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 233 [2022-11-22 01:40:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:22,698 INFO L225 Difference]: With dead ends: 13578 [2022-11-22 01:40:22,698 INFO L226 Difference]: Without dead ends: 13576 [2022-11-22 01:40:22,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:40:22,705 INFO L413 NwaCegarLoop]: 5231 mSDtfsCounter, 3410 mSDsluCounter, 14103 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3415 SdHoareTripleChecker+Valid, 19334 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:22,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3415 Valid, 19334 Invalid, 1670 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1660 Invalid, 7 Unknown, 0 Unchecked, 45.7s Time] [2022-11-22 01:40:22,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13576 states. [2022-11-22 01:40:23,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13576 to 13566. [2022-11-22 01:40:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13566 states, 8673 states have (on average 1.3409431569237864) internal successors, (11630), 8776 states have internal predecessors, (11630), 3994 states have call successors, (3994), 912 states have call predecessors, (3994), 896 states have return successors, (3995), 3922 states have call predecessors, (3995), 3986 states have call successors, (3995) [2022-11-22 01:40:23,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13566 states to 13566 states and 19619 transitions. [2022-11-22 01:40:23,483 INFO L78 Accepts]: Start accepts. Automaton has 13566 states and 19619 transitions. Word has length 233 [2022-11-22 01:40:23,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:23,484 INFO L495 AbstractCegarLoop]: Abstraction has 13566 states and 19619 transitions. [2022-11-22 01:40:23,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 01:40:23,484 INFO L276 IsEmpty]: Start isEmpty. Operand 13566 states and 19619 transitions. [2022-11-22 01:40:23,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-22 01:40:23,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:23,492 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:23,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:40:23,492 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_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:40:23,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:23,493 INFO L85 PathProgramCache]: Analyzing trace with hash 9467664, now seen corresponding path program 1 times [2022-11-22 01:40:23,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:23,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453868760] [2022-11-22 01:40:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:23,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1135 trivial. 0 not checked. [2022-11-22 01:40:26,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:26,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453868760] [2022-11-22 01:40:26,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453868760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:26,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:26,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:40:26,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086466805] [2022-11-22 01:40:26,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:26,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:40:26,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:26,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:40:26,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:26,701 INFO L87 Difference]: Start difference. First operand 13566 states and 19619 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:40:31,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:32,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:36,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:40:38,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:40:42,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:44,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:46,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:50,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:57,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:59,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:04,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:07,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:13,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:13,703 INFO L93 Difference]: Finished difference Result 26086 states and 37899 transitions. [2022-11-22 01:41:13,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:41:13,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 238 [2022-11-22 01:41:13,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:13,849 INFO L225 Difference]: With dead ends: 26086 [2022-11-22 01:41:13,849 INFO L226 Difference]: Without dead ends: 26084 [2022-11-22 01:41:13,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:41:13,867 INFO L413 NwaCegarLoop]: 5133 mSDtfsCounter, 3871 mSDsluCounter, 13994 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 19127 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:13,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3878 Valid, 19127 Invalid, 1646 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1635 Invalid, 8 Unknown, 0 Unchecked, 46.2s Time] [2022-11-22 01:41:13,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26084 states. [2022-11-22 01:41:15,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26084 to 26051. [2022-11-22 01:41:15,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26051 states, 16633 states have (on average 1.3424517525401312) internal successors, (22329), 16857 states have internal predecessors, (22329), 7690 states have call successors, (7690), 1762 states have call predecessors, (7690), 1725 states have return successors, (7847), 7520 states have call predecessors, (7847), 7674 states have call successors, (7847) [2022-11-22 01:41:15,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26051 states to 26051 states and 37866 transitions. [2022-11-22 01:41:15,459 INFO L78 Accepts]: Start accepts. Automaton has 26051 states and 37866 transitions. Word has length 238 [2022-11-22 01:41:15,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:15,460 INFO L495 AbstractCegarLoop]: Abstraction has 26051 states and 37866 transitions. [2022-11-22 01:41:15,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:41:15,461 INFO L276 IsEmpty]: Start isEmpty. Operand 26051 states and 37866 transitions. [2022-11-22 01:41:15,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-22 01:41:15,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:15,469 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 3, 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] [2022-11-22 01:41:15,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:41:15,469 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_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:41:15,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:15,470 INFO L85 PathProgramCache]: Analyzing trace with hash -348458759, now seen corresponding path program 1 times [2022-11-22 01:41:15,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:41:15,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319138195] [2022-11-22 01:41:15,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:15,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:41:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2022-11-22 01:41:18,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:41:18,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319138195] [2022-11-22 01:41:18,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319138195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:18,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:18,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:41:18,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111102122] [2022-11-22 01:41:18,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:18,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:41:18,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:41:18,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:41:18,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:41:18,554 INFO L87 Difference]: Start difference. First operand 26051 states and 37866 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:41:23,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:27,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:29,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:31,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:34,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:37,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:40,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:43,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:45,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:47,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:53,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:57,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:00,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:04,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:04,877 INFO L93 Difference]: Finished difference Result 43876 states and 63651 transitions. [2022-11-22 01:42:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:42:04,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 242 [2022-11-22 01:42:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:05,101 INFO L225 Difference]: With dead ends: 43876 [2022-11-22 01:42:05,101 INFO L226 Difference]: Without dead ends: 43874 [2022-11-22 01:42:05,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:42:05,122 INFO L413 NwaCegarLoop]: 4626 mSDtfsCounter, 3462 mSDsluCounter, 12975 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3470 SdHoareTripleChecker+Valid, 17601 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:05,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3470 Valid, 17601 Invalid, 1539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1527 Invalid, 10 Unknown, 0 Unchecked, 45.0s Time] [2022-11-22 01:42:05,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43874 states. [2022-11-22 01:42:07,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43874 to 43827. [2022-11-22 01:42:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43827 states, 27934 states have (on average 1.3401589460872056) internal successors, (37436), 28281 states have internal predecessors, (37436), 12945 states have call successors, (12945), 3004 states have call predecessors, (12945), 2945 states have return successors, (13214), 12690 states have call predecessors, (13214), 12921 states have call successors, (13214) [2022-11-22 01:42:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43827 states to 43827 states and 63595 transitions. [2022-11-22 01:42:07,711 INFO L78 Accepts]: Start accepts. Automaton has 43827 states and 63595 transitions. Word has length 242 [2022-11-22 01:42:07,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:07,712 INFO L495 AbstractCegarLoop]: Abstraction has 43827 states and 63595 transitions. [2022-11-22 01:42:07,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:42:07,712 INFO L276 IsEmpty]: Start isEmpty. Operand 43827 states and 63595 transitions. [2022-11-22 01:42:07,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-22 01:42:07,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:07,722 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 4, 4, 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] [2022-11-22 01:42:07,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:42:07,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:42:07,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:07,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1169752311, now seen corresponding path program 1 times [2022-11-22 01:42:07,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:07,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673701630] [2022-11-22 01:42:07,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:07,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2022-11-22 01:42:09,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:09,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673701630] [2022-11-22 01:42:09,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673701630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:09,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:09,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:42:09,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424703738] [2022-11-22 01:42:09,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:09,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:42:09,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:09,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:42:09,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:09,478 INFO L87 Difference]: Start difference. First operand 43827 states and 63595 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:42:17,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:20,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:23,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:26,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:30,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:33,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:36,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:38,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:40,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:40,956 INFO L93 Difference]: Finished difference Result 98472 states and 142873 transitions. [2022-11-22 01:42:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:42:40,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 248 [2022-11-22 01:42:40,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:41,448 INFO L225 Difference]: With dead ends: 98472 [2022-11-22 01:42:41,448 INFO L226 Difference]: Without dead ends: 55181 [2022-11-22 01:42:41,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:41,636 INFO L413 NwaCegarLoop]: 5831 mSDtfsCounter, 2314 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 15 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 9575 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:41,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 9575 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 971 Invalid, 6 Unknown, 0 Unchecked, 29.6s Time] [2022-11-22 01:42:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55181 states. [2022-11-22 01:42:44,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55181 to 55049. [2022-11-22 01:42:44,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55049 states, 35279 states have (on average 1.343292043425267) internal successors, (47390), 35714 states have internal predecessors, (47390), 16007 states have call successors, (16007), 3838 states have call predecessors, (16007), 3760 states have return successors, (16311), 15673 states have call predecessors, (16311), 15983 states have call successors, (16311) [2022-11-22 01:42:44,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55049 states to 55049 states and 79708 transitions. [2022-11-22 01:42:44,767 INFO L78 Accepts]: Start accepts. Automaton has 55049 states and 79708 transitions. Word has length 248 [2022-11-22 01:42:44,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:44,768 INFO L495 AbstractCegarLoop]: Abstraction has 55049 states and 79708 transitions. [2022-11-22 01:42:44,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:42:44,769 INFO L276 IsEmpty]: Start isEmpty. Operand 55049 states and 79708 transitions. [2022-11-22 01:42:44,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-22 01:42:44,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:44,777 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 4, 3, 3, 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] [2022-11-22 01:42:44,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:42:44,777 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_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:42:44,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:44,778 INFO L85 PathProgramCache]: Analyzing trace with hash -158607632, now seen corresponding path program 1 times [2022-11-22 01:42:44,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:44,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130632070] [2022-11-22 01:42:44,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:44,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-11-22 01:42:48,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:48,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130632070] [2022-11-22 01:42:48,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130632070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:48,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:48,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:42:48,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852994058] [2022-11-22 01:42:48,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:48,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:42:48,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:48,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:42:48,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:42:48,060 INFO L87 Difference]: Start difference. First operand 55049 states and 79708 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:42:57,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:59,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:03,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:05,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:09,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:11,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:20,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:23,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:27,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:28,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:43:28,406 INFO L93 Difference]: Finished difference Result 55527 states and 80271 transitions. [2022-11-22 01:43:28,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:43:28,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 247 [2022-11-22 01:43:28,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:43:28,714 INFO L225 Difference]: With dead ends: 55527 [2022-11-22 01:43:28,714 INFO L226 Difference]: Without dead ends: 55523 [2022-11-22 01:43:28,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:43:28,746 INFO L413 NwaCegarLoop]: 4630 mSDtfsCounter, 3420 mSDsluCounter, 12983 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3427 SdHoareTripleChecker+Valid, 17613 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:43:28,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3427 Valid, 17613 Invalid, 1558 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1549 Invalid, 7 Unknown, 0 Unchecked, 38.6s Time] [2022-11-22 01:43:28,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55523 states. [2022-11-22 01:43:31,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55523 to 55507. [2022-11-22 01:43:31,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55507 states, 35555 states have (on average 1.3425397271832373) internal successors, (47734), 36004 states have internal predecessors, (47734), 16106 states have call successors, (16106), 3913 states have call predecessors, (16106), 3843 states have return successors, (16413), 15766 states have call predecessors, (16413), 16082 states have call successors, (16413) [2022-11-22 01:43:31,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55507 states to 55507 states and 80253 transitions. [2022-11-22 01:43:31,635 INFO L78 Accepts]: Start accepts. Automaton has 55507 states and 80253 transitions. Word has length 247 [2022-11-22 01:43:31,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:43:31,635 INFO L495 AbstractCegarLoop]: Abstraction has 55507 states and 80253 transitions. [2022-11-22 01:43:31,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:43:31,636 INFO L276 IsEmpty]: Start isEmpty. Operand 55507 states and 80253 transitions. [2022-11-22 01:43:31,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-22 01:43:31,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:31,644 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 5, 4, 4, 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] [2022-11-22 01:43:31,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:43:31,645 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:43:31,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:31,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1766951321, now seen corresponding path program 1 times [2022-11-22 01:43:31,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:43:31,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147517697] [2022-11-22 01:43:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:31,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:43:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:34,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2022-11-22 01:43:34,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:43:34,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147517697] [2022-11-22 01:43:34,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147517697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:43:34,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:43:34,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:43:34,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571678585] [2022-11-22 01:43:34,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:43:34,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:43:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:43:34,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:43:34,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:43:34,550 INFO L87 Difference]: Start difference. First operand 55507 states and 80253 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 01:43:43,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:45,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:46,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:48,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:50,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:53,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:55,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:59,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:01,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:03,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:04,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:06,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:09,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:18,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:21,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:26,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:26,661 INFO L93 Difference]: Finished difference Result 55520 states and 80262 transitions. [2022-11-22 01:44:26,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:44:26,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 253 [2022-11-22 01:44:26,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:26,923 INFO L225 Difference]: With dead ends: 55520 [2022-11-22 01:44:26,924 INFO L226 Difference]: Without dead ends: 55429 [2022-11-22 01:44:26,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:44:26,966 INFO L413 NwaCegarLoop]: 4627 mSDtfsCounter, 3466 mSDsluCounter, 12977 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3471 SdHoareTripleChecker+Valid, 17604 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:26,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3471 Valid, 17604 Invalid, 1541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1529 Invalid, 10 Unknown, 0 Unchecked, 50.4s Time] [2022-11-22 01:44:27,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55429 states. [2022-11-22 01:44:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55429 to 55422. [2022-11-22 01:44:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55422 states, 35526 states have (on average 1.3422845240105838) internal successors, (47686), 35957 states have internal predecessors, (47686), 16059 states have call successors, (16059), 3899 states have call predecessors, (16059), 3834 states have return successors, (16370), 15742 states have call predecessors, (16370), 16039 states have call successors, (16370) [2022-11-22 01:44:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55422 states to 55422 states and 80115 transitions. [2022-11-22 01:44:29,831 INFO L78 Accepts]: Start accepts. Automaton has 55422 states and 80115 transitions. Word has length 253 [2022-11-22 01:44:29,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:29,831 INFO L495 AbstractCegarLoop]: Abstraction has 55422 states and 80115 transitions. [2022-11-22 01:44:29,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 01:44:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 55422 states and 80115 transitions. [2022-11-22 01:44:29,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-11-22 01:44:29,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:29,847 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 8, 8, 3, 3, 3, 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] [2022-11-22 01:44:29,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:44:29,848 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:44:29,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:29,849 INFO L85 PathProgramCache]: Analyzing trace with hash -2012726975, now seen corresponding path program 1 times [2022-11-22 01:44:29,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:29,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862935592] [2022-11-22 01:44:29,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:29,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:33,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2022-11-22 01:44:33,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:33,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862935592] [2022-11-22 01:44:33,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862935592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:33,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:33,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:44:33,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047601113] [2022-11-22 01:44:33,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:33,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:44:33,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:33,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:44:33,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:44:33,923 INFO L87 Difference]: Start difference. First operand 55422 states and 80115 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:44:44,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:46,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:51,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:53,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:57,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:01,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:03,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:04,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:14,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:17,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:20,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:20,763 INFO L93 Difference]: Finished difference Result 55555 states and 80261 transitions. [2022-11-22 01:45:20,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:45:20,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 305 [2022-11-22 01:45:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:20,998 INFO L225 Difference]: With dead ends: 55555 [2022-11-22 01:45:20,998 INFO L226 Difference]: Without dead ends: 55553 [2022-11-22 01:45:21,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:21,030 INFO L413 NwaCegarLoop]: 5241 mSDtfsCounter, 3330 mSDsluCounter, 14120 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3334 SdHoareTripleChecker+Valid, 19361 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:21,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3334 Valid, 19361 Invalid, 1691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1680 Invalid, 8 Unknown, 0 Unchecked, 45.1s Time] [2022-11-22 01:45:21,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55553 states. [2022-11-22 01:45:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55553 to 55492. [2022-11-22 01:45:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55492 states, 35571 states have (on average 1.341823395462596) internal successors, (47730), 36001 states have internal predecessors, (47730), 16066 states have call successors, (16066), 3912 states have call predecessors, (16066), 3852 states have return successors, (16378), 15755 states have call predecessors, (16378), 16046 states have call successors, (16378) [2022-11-22 01:45:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55492 states to 55492 states and 80174 transitions. [2022-11-22 01:45:23,736 INFO L78 Accepts]: Start accepts. Automaton has 55492 states and 80174 transitions. Word has length 305 [2022-11-22 01:45:23,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:23,737 INFO L495 AbstractCegarLoop]: Abstraction has 55492 states and 80174 transitions. [2022-11-22 01:45:23,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:45:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand 55492 states and 80174 transitions. [2022-11-22 01:45:23,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-22 01:45:23,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:23,754 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 8, 8, 3, 3, 3, 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] [2022-11-22 01:45:23,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:45:23,755 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:45:23,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash 430586542, now seen corresponding path program 1 times [2022-11-22 01:45:23,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:23,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009021302] [2022-11-22 01:45:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:23,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2022-11-22 01:45:25,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:25,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009021302] [2022-11-22 01:45:25,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009021302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:25,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:25,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:45:25,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503564033] [2022-11-22 01:45:25,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:25,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:45:25,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:25,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:45:25,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:45:25,875 INFO L87 Difference]: Start difference. First operand 55492 states and 80174 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-22 01:45:33,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:45:36,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:45:38,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:45:41,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:43,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:46,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:48,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:55,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:58,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:02,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:02,216 INFO L93 Difference]: Finished difference Result 130593 states and 188301 transitions. [2022-11-22 01:46:02,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:02,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 325 [2022-11-22 01:46:02,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:02,802 INFO L225 Difference]: With dead ends: 130593 [2022-11-22 01:46:02,802 INFO L226 Difference]: Without dead ends: 75637 [2022-11-22 01:46:03,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:03,027 INFO L413 NwaCegarLoop]: 6234 mSDtfsCounter, 3278 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3280 SdHoareTripleChecker+Valid, 9953 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:03,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3280 Valid, 9953 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1011 Invalid, 5 Unknown, 0 Unchecked, 33.4s Time] [2022-11-22 01:46:03,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75637 states. [2022-11-22 01:46:06,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75637 to 75536. [2022-11-22 01:46:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75536 states, 48357 states have (on average 1.33976466695618) internal successors, (64787), 48972 states have internal predecessors, (64787), 21716 states have call successors, (21716), 5535 states have call predecessors, (21716), 5460 states have return successors, (22112), 21285 states have call predecessors, (22112), 21696 states have call successors, (22112) [2022-11-22 01:46:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75536 states to 75536 states and 108615 transitions. [2022-11-22 01:46:06,728 INFO L78 Accepts]: Start accepts. Automaton has 75536 states and 108615 transitions. Word has length 325 [2022-11-22 01:46:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:06,729 INFO L495 AbstractCegarLoop]: Abstraction has 75536 states and 108615 transitions. [2022-11-22 01:46:06,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-22 01:46:06,730 INFO L276 IsEmpty]: Start isEmpty. Operand 75536 states and 108615 transitions. [2022-11-22 01:46:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-11-22 01:46:06,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:06,744 INFO L195 NwaCegarLoop]: trace histogram [23, 17, 17, 17, 17, 17, 17, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:06,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:46:06,744 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:06,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:06,745 INFO L85 PathProgramCache]: Analyzing trace with hash -617924737, now seen corresponding path program 1 times [2022-11-22 01:46:06,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:06,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874247845] [2022-11-22 01:46:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:06,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:10,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1465 trivial. 0 not checked. [2022-11-22 01:46:10,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:10,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874247845] [2022-11-22 01:46:10,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874247845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:10,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:10,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:10,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400123341] [2022-11-22 01:46:10,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:10,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:10,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:10,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:10,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:10,354 INFO L87 Difference]: Start difference. First operand 75536 states and 108615 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:46:14,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:18,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:46:20,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:46:22,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:46:25,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:27,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:31,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:36,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:39,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:42,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:42,209 INFO L93 Difference]: Finished difference Result 165195 states and 240343 transitions. [2022-11-22 01:46:42,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:42,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 335 [2022-11-22 01:46:42,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:42,540 INFO L225 Difference]: With dead ends: 165195 [2022-11-22 01:46:42,541 INFO L226 Difference]: Without dead ends: 90195 [2022-11-22 01:46:42,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:42,943 INFO L413 NwaCegarLoop]: 4252 mSDtfsCounter, 390 mSDsluCounter, 3843 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 8095 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:42,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 8095 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 809 Invalid, 7 Unknown, 0 Unchecked, 28.1s Time] [2022-11-22 01:46:43,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90195 states. [2022-11-22 01:46:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90195 to 75548. [2022-11-22 01:46:47,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75548 states, 48369 states have (on average 1.339680373793132) internal successors, (64799), 48984 states have internal predecessors, (64799), 21716 states have call successors, (21716), 5535 states have call predecessors, (21716), 5460 states have return successors, (22112), 21285 states have call predecessors, (22112), 21696 states have call successors, (22112) [2022-11-22 01:46:47,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75548 states to 75548 states and 108627 transitions. [2022-11-22 01:46:47,857 INFO L78 Accepts]: Start accepts. Automaton has 75548 states and 108627 transitions. Word has length 335 [2022-11-22 01:46:47,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:47,862 INFO L495 AbstractCegarLoop]: Abstraction has 75548 states and 108627 transitions. [2022-11-22 01:46:47,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:46:47,862 INFO L276 IsEmpty]: Start isEmpty. Operand 75548 states and 108627 transitions. [2022-11-22 01:46:47,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-22 01:46:47,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:47,880 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:47,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:46:47,880 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:46:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:47,881 INFO L85 PathProgramCache]: Analyzing trace with hash 290738180, now seen corresponding path program 1 times [2022-11-22 01:46:47,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:47,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053788402] [2022-11-22 01:46:47,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:47,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:49,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1613 trivial. 0 not checked. [2022-11-22 01:46:49,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:49,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053788402] [2022-11-22 01:46:49,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053788402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:49,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:49,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:49,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253208225] [2022-11-22 01:46:49,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:49,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:49,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:49,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:49,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:49,686 INFO L87 Difference]: Start difference. First operand 75548 states and 108627 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-22 01:46:56,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:46:58,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:47:01,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:03,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:07,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:13,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:17,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:20,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:20,278 INFO L93 Difference]: Finished difference Result 165252 states and 240421 transitions. [2022-11-22 01:47:20,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:47:20,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 348 [2022-11-22 01:47:20,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:20,771 INFO L225 Difference]: With dead ends: 165252 [2022-11-22 01:47:20,771 INFO L226 Difference]: Without dead ends: 90240 [2022-11-22 01:47:20,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:47:20,984 INFO L413 NwaCegarLoop]: 4248 mSDtfsCounter, 395 mSDsluCounter, 3841 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 8089 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:20,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 8089 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 807 Invalid, 6 Unknown, 0 Unchecked, 25.8s Time] [2022-11-22 01:47:21,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90240 states. [2022-11-22 01:47:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90240 to 75549. [2022-11-22 01:47:25,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75549 states, 48370 states have (on average 1.3396733512507752) internal successors, (64800), 48985 states have internal predecessors, (64800), 21716 states have call successors, (21716), 5535 states have call predecessors, (21716), 5460 states have return successors, (22112), 21285 states have call predecessors, (22112), 21696 states have call successors, (22112) [2022-11-22 01:47:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75549 states to 75549 states and 108628 transitions. [2022-11-22 01:47:26,071 INFO L78 Accepts]: Start accepts. Automaton has 75549 states and 108628 transitions. Word has length 348 [2022-11-22 01:47:26,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:26,077 INFO L495 AbstractCegarLoop]: Abstraction has 75549 states and 108628 transitions. [2022-11-22 01:47:26,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-22 01:47:26,078 INFO L276 IsEmpty]: Start isEmpty. Operand 75549 states and 108628 transitions. [2022-11-22 01:47:26,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-11-22 01:47:26,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:26,097 INFO L195 NwaCegarLoop]: trace histogram [24, 16, 16, 16, 16, 16, 16, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:26,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:47:26,098 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:47:26,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:26,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1121246960, now seen corresponding path program 1 times [2022-11-22 01:47:26,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:26,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831148007] [2022-11-22 01:47:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:26,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-11-22 01:47:28,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:28,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831148007] [2022-11-22 01:47:28,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831148007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:28,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:28,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:47:28,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288590664] [2022-11-22 01:47:28,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:28,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:47:28,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:28,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:47:28,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:47:28,126 INFO L87 Difference]: Start difference. First operand 75549 states and 108628 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:47:36,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:47:38,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:47:41,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:43,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:46,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:52,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:47:55,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:57,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:48:00,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:48:04,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:04,053 INFO L93 Difference]: Finished difference Result 162110 states and 233181 transitions. [2022-11-22 01:48:04,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:48:04,054 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 378 [2022-11-22 01:48:04,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:04,422 INFO L225 Difference]: With dead ends: 162110 [2022-11-22 01:48:04,422 INFO L226 Difference]: Without dead ends: 87097 [2022-11-22 01:48:04,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:48:04,643 INFO L413 NwaCegarLoop]: 5806 mSDtfsCounter, 2400 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 14 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 9550 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:04,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 9550 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 957 Invalid, 5 Unknown, 0 Unchecked, 31.4s Time] [2022-11-22 01:48:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87097 states. [2022-11-22 01:48:09,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87097 to 86998. [2022-11-22 01:48:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86998 states, 55877 states have (on average 1.3417685273010362) internal successors, (74974), 56577 states have internal predecessors, (74974), 24819 states have call successors, (24819), 6388 states have call predecessors, (24819), 6299 states have return successors, (25250), 24317 states have call predecessors, (25250), 24799 states have call successors, (25250) [2022-11-22 01:48:10,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86998 states to 86998 states and 125043 transitions. [2022-11-22 01:48:10,034 INFO L78 Accepts]: Start accepts. Automaton has 86998 states and 125043 transitions. Word has length 378 [2022-11-22 01:48:10,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:10,035 INFO L495 AbstractCegarLoop]: Abstraction has 86998 states and 125043 transitions. [2022-11-22 01:48:10,035 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:48:10,035 INFO L276 IsEmpty]: Start isEmpty. Operand 86998 states and 125043 transitions. [2022-11-22 01:48:10,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-11-22 01:48:10,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:10,052 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:10,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:48:10,053 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:48:10,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:10,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1467400309, now seen corresponding path program 1 times [2022-11-22 01:48:10,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:10,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286027222] [2022-11-22 01:48:10,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:10,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms