./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-prism54-prism54.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:43:53,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:43:53,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:43:53,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:43:53,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:43:53,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:43:53,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:43:53,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:43:53,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:43:53,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:43:53,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:43:53,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:43:53,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:43:53,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:43:53,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:43:53,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:43:53,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:43:53,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:43:53,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:43:53,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:43:53,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:43:53,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:43:53,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:43:53,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:43:53,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:43:53,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:43:53,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:43:53,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:43:53,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:43:53,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:43:53,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:43:53,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:43:53,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:43:53,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:43:53,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:43:53,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:43:53,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:43:53,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:43:53,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:43:53,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:43:53,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:43:53,651 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:43:53,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:43:53,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:43:53,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:43:53,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:43:53,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:43:53,676 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:43:53,676 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:43:53,677 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:43:53,677 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:43:53,677 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:43:53,678 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:43:53,678 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:43:53,678 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:43:53,678 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:43:53,679 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:43:53,679 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:43:53,679 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:43:53,679 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:43:53,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:43:53,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:43:53,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:43:53,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:43:53,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:43:53,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:43:53,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:43:53,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:43:53,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:43:53,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:43:53,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:43:53,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:43:53,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:43:53,684 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:43:53,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:43:53,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:43:53,684 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:43:53,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:43:53,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:43:53,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:43:53,685 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_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 [2022-11-03 02:43:53,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:43:54,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:43:54,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:43:54,019 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:43:54,020 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:43:54,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2022-11-03 02:43:54,097 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/data/bf7dc0416/552be34ec29840e6ba60574fff8c2bab/FLAGbefebbd7c [2022-11-03 02:43:55,286 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:43:55,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2022-11-03 02:43:55,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/data/bf7dc0416/552be34ec29840e6ba60574fff8c2bab/FLAGbefebbd7c [2022-11-03 02:43:55,481 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/data/bf7dc0416/552be34ec29840e6ba60574fff8c2bab [2022-11-03 02:43:55,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:43:55,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:43:55,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:43:55,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:43:55,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:43:55,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:43:55" (1/1) ... [2022-11-03 02:43:55,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdc6383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:55, skipping insertion in model container [2022-11-03 02:43:55,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:43:55" (1/1) ... [2022-11-03 02:43:55,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:43:55,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:44:00,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2022-11-03 02:44:00,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2022-11-03 02:44:00,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2022-11-03 02:44:00,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2022-11-03 02:44:00,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:44:00,345 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:44:00,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2022-11-03 02:44:00,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2022-11-03 02:44:00,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2022-11-03 02:44:00,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2022-11-03 02:44:00,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:44:01,222 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:44:01,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01 WrapperNode [2022-11-03 02:44:01,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:44:01,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:44:01,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:44:01,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:44:01,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:01,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:01,713 INFO L138 Inliner]: procedures = 538, calls = 6232, calls flagged for inlining = 274, calls inlined = 248, statements flattened = 8897 [2022-11-03 02:44:01,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:44:01,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:44:01,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:44:01,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:44:01,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:01,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:01,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:01,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:02,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:02,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:02,147 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:02,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:02,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:44:02,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:44:02,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:44:02,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:44:02,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (1/1) ... [2022-11-03 02:44:02,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:44:02,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:44:02,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:44:02,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3d66c1-4852-431d-9b2d-d403e761bf5f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:44:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2022-11-03 02:44:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2022-11-03 02:44:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-11-03 02:44:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-11-03 02:44:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-11-03 02:44:02,319 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-11-03 02:44:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-03 02:44:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:44:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:44:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:44:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:44:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-11-03 02:44:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-11-03 02:44:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:44:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:44:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:44:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:44:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-11-03 02:44:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-11-03 02:44:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:44:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:44:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 02:44:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 02:44:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:44:02,323 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:44:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-11-03 02:44:02,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-11-03 02:44:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-11-03 02:44:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-11-03 02:44:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 02:44:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-11-03 02:44:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-11-03 02:44:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:44:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:44:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:44:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:44:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:44:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:44:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:44:02,326 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:44:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-11-03 02:44:02,326 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-11-03 02:44:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:44:02,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:44:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:44:02,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 02:44:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:44:02,329 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:44:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2022-11-03 02:44:02,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2022-11-03 02:44:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:44:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:44:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:44:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2022-11-03 02:44:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2022-11-03 02:44:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2022-11-03 02:44:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2022-11-03 02:44:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:44:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:44:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:44:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:44:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2022-11-03 02:44:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2022-11-03 02:44:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-11-03 02:44:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-11-03 02:44:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:44:02,334 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:44:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:44:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:44:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:44:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-11-03 02:44:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-11-03 02:44:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:44:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:44:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 02:44:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 02:44:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-03 02:44:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-03 02:44:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:44:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:44:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:44:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:44:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:44:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:44:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:44:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:44:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:44:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:44:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:44:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:44:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2022-11-03 02:44:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2022-11-03 02:44:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-11-03 02:44:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-11-03 02:44:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:44:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:44:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:44:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:44:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:44:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:44:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:44:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-03 02:44:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-03 02:44:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 02:44:02,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 02:44:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:44:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:44:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:44:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:44:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:44:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:44:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:44:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:44:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:44:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2022-11-03 02:44:02,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2022-11-03 02:44:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 02:44:02,356 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 02:44:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:44:02,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:44:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:44:02,357 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:44:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2022-11-03 02:44:02,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2022-11-03 02:44:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 02:44:02,357 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 02:44:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:44:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:44:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-03 02:44:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-03 02:44:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 02:44:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 02:44:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 02:44:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 02:44:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-11-03 02:44:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-11-03 02:44:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-03 02:44:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-03 02:44:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 02:44:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 02:44:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:44:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:44:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-03 02:44:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-03 02:44:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 02:44:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 02:44:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-03 02:44:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-03 02:44:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-11-03 02:44:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-11-03 02:44:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2022-11-03 02:44:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2022-11-03 02:44:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:44:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:44:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:44:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:44:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:44:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:44:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2022-11-03 02:44:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2022-11-03 02:44:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-11-03 02:44:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-11-03 02:44:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-03 02:44:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-03 02:44:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:44:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:44:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:44:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:44:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:44:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:44:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 02:44:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 02:44:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:44:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:44:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 02:44:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 02:44:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:44:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:44:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:44:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-11-03 02:44:02,368 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-11-03 02:44:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-03 02:44:02,368 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-03 02:44:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:44:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2022-11-03 02:44:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2022-11-03 02:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-03 02:44:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-03 02:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-03 02:44:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-03 02:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:44:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2022-11-03 02:44:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2022-11-03 02:44:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-03 02:44:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-03 02:44:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2022-11-03 02:44:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2022-11-03 02:44:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 02:44:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 02:44:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:44:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:44:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:44:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:44:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:44:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-11-03 02:44:02,372 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-11-03 02:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-11-03 02:44:02,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-11-03 02:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:44:02,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:44:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:44:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:44:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-03 02:44:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-03 02:44:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:44:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:44:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-03 02:44:02,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-03 02:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-11-03 02:44:02,374 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-11-03 02:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 02:44:02,374 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 02:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:44:02,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:44:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:44:02,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:44:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:44:02,375 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:44:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-11-03 02:44:02,375 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-11-03 02:44:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-11-03 02:44:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-11-03 02:44:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:44:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:44:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:44:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 02:44:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-11-03 02:44:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-11-03 02:44:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:44:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-03 02:44:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-03 02:44:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-03 02:44:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-03 02:44:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:44:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:44:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-11-03 02:44:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-11-03 02:44:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-03 02:44:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-03 02:44:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-11-03 02:44:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-11-03 02:44:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 02:44:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 02:44:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-11-03 02:44:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-11-03 02:44:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-03 02:44:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-03 02:44:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:44:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:44:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:44:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:44:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 02:44:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 02:44:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-03 02:44:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-03 02:44:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-11-03 02:44:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-11-03 02:44:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-03 02:44:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-03 02:44:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 02:44:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 02:44:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:44:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:44:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:44:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:44:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:44:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 02:44:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 02:44:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-11-03 02:44:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-11-03 02:44:03,661 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:44:03,664 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:44:04,252 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:44:12,666 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:44:12,981 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:44:15,138 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:44:15,139 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-03 02:44:15,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:44:15 BoogieIcfgContainer [2022-11-03 02:44:15,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:44:15,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:44:15,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:44:15,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:44:15,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:43:55" (1/3) ... [2022-11-03 02:44:15,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3731f14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:44:15, skipping insertion in model container [2022-11-03 02:44:15,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:44:01" (2/3) ... [2022-11-03 02:44:15,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3731f14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:44:15, skipping insertion in model container [2022-11-03 02:44:15,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:44:15" (3/3) ... [2022-11-03 02:44:15,153 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2022-11-03 02:44:15,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:44:15,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-03 02:44:15,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:44:15,269 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;@7dbdcaa5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:44:15,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-03 02:44:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 1847 states, 1095 states have (on average 1.3105022831050228) internal successors, (1435), 1145 states have internal predecessors, (1435), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) [2022-11-03 02:44:15,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 02:44:15,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:15,296 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:15,296 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 2 more)] === [2022-11-03 02:44:15,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:15,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1244152710, now seen corresponding path program 1 times [2022-11-03 02:44:15,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:15,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973800246] [2022-11-03 02:44:15,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:15,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-03 02:44:16,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:16,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973800246] [2022-11-03 02:44:16,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973800246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:16,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:16,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:16,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020511718] [2022-11-03 02:44:16,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:16,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:16,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:16,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:16,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:16,703 INFO L87 Difference]: Start difference. First operand has 1847 states, 1095 states have (on average 1.3105022831050228) internal successors, (1435), 1145 states have internal predecessors, (1435), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-03 02:44:21,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:21,646 INFO L93 Difference]: Finished difference Result 5446 states and 8038 transitions. [2022-11-03 02:44:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:21,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2022-11-03 02:44:21,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:21,699 INFO L225 Difference]: With dead ends: 5446 [2022-11-03 02:44:21,699 INFO L226 Difference]: Without dead ends: 3602 [2022-11-03 02:44:21,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:21,721 INFO L413 NwaCegarLoop]: 2892 mSDtfsCounter, 2564 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2564 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:21,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2564 Valid, 5165 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 02:44:21,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2022-11-03 02:44:22,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 3596. [2022-11-03 02:44:22,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 2145 states have (on average 1.3034965034965036) internal successors, (2796), 2243 states have internal predecessors, (2796), 1191 states have call successors, (1191), 257 states have call predecessors, (1191), 256 states have return successors, (1187), 1149 states have call predecessors, (1187), 1187 states have call successors, (1187) [2022-11-03 02:44:22,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 5174 transitions. [2022-11-03 02:44:22,052 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 5174 transitions. Word has length 81 [2022-11-03 02:44:22,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:22,055 INFO L495 AbstractCegarLoop]: Abstraction has 3596 states and 5174 transitions. [2022-11-03 02:44:22,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-03 02:44:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 5174 transitions. [2022-11-03 02:44:22,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 02:44:22,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:22,066 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:22,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:44:22,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_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 2 more)] === [2022-11-03 02:44:22,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:22,068 INFO L85 PathProgramCache]: Analyzing trace with hash -831299960, now seen corresponding path program 1 times [2022-11-03 02:44:22,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:22,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301944927] [2022-11-03 02:44:22,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:22,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:23,005 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-03 02:44:23,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:23,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301944927] [2022-11-03 02:44:23,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301944927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:23,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:23,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:23,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107722476] [2022-11-03 02:44:23,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:23,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:23,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:23,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:23,013 INFO L87 Difference]: Start difference. First operand 3596 states and 5174 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-03 02:44:27,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:27,837 INFO L93 Difference]: Finished difference Result 8953 states and 12879 transitions. [2022-11-03 02:44:27,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:27,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2022-11-03 02:44:27,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:27,878 INFO L225 Difference]: With dead ends: 8953 [2022-11-03 02:44:27,879 INFO L226 Difference]: Without dead ends: 5370 [2022-11-03 02:44:27,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:27,897 INFO L413 NwaCegarLoop]: 2894 mSDtfsCounter, 2565 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2565 SdHoareTripleChecker+Valid, 5177 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:27,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2565 Valid, 5177 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-03 02:44:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5370 states. [2022-11-03 02:44:28,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5370 to 5348. [2022-11-03 02:44:28,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5348 states, 3187 states have (on average 1.3024788202070914) internal successors, (4151), 3336 states have internal predecessors, (4151), 1772 states have call successors, (1772), 386 states have call predecessors, (1772), 385 states have return successors, (1768), 1706 states have call predecessors, (1768), 1768 states have call successors, (1768) [2022-11-03 02:44:28,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5348 states to 5348 states and 7691 transitions. [2022-11-03 02:44:28,215 INFO L78 Accepts]: Start accepts. Automaton has 5348 states and 7691 transitions. Word has length 81 [2022-11-03 02:44:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:28,218 INFO L495 AbstractCegarLoop]: Abstraction has 5348 states and 7691 transitions. [2022-11-03 02:44:28,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-03 02:44:28,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5348 states and 7691 transitions. [2022-11-03 02:44:28,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-03 02:44:28,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:28,222 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:28,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:44:28,223 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 2 more)] === [2022-11-03 02:44:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:28,225 INFO L85 PathProgramCache]: Analyzing trace with hash -398230191, now seen corresponding path program 1 times [2022-11-03 02:44:28,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:28,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922597974] [2022-11-03 02:44:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:28,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:30,185 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-03 02:44:30,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:30,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922597974] [2022-11-03 02:44:30,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922597974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:30,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:30,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:44:30,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048793392] [2022-11-03 02:44:30,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:30,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:44:30,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:30,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:44:30,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:44:30,193 INFO L87 Difference]: Start difference. First operand 5348 states and 7691 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:44:41,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:41,817 INFO L93 Difference]: Finished difference Result 16146 states and 23097 transitions. [2022-11-03 02:44:41,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:44:41,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-11-03 02:44:41,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:41,901 INFO L225 Difference]: With dead ends: 16146 [2022-11-03 02:44:41,902 INFO L226 Difference]: Without dead ends: 10811 [2022-11-03 02:44:41,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:44:41,946 INFO L413 NwaCegarLoop]: 3298 mSDtfsCounter, 6087 mSDsluCounter, 6449 mSDsCounter, 0 mSdLazyCounter, 3450 mSolverCounterSat, 936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6221 SdHoareTripleChecker+Valid, 8655 SdHoareTripleChecker+Invalid, 4386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 936 IncrementalHoareTripleChecker+Valid, 3450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:41,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6221 Valid, 8655 Invalid, 4386 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [936 Valid, 3450 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-11-03 02:44:41,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2022-11-03 02:44:42,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 10759. [2022-11-03 02:44:42,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10759 states, 6471 states have (on average 1.301808066759388) internal successors, (8424), 6799 states have internal predecessors, (8424), 3450 states have call successors, (3450), 839 states have call predecessors, (3450), 834 states have return successors, (3446), 3294 states have call predecessors, (3446), 3446 states have call successors, (3446) [2022-11-03 02:44:42,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10759 states to 10759 states and 15320 transitions. [2022-11-03 02:44:42,874 INFO L78 Accepts]: Start accepts. Automaton has 10759 states and 15320 transitions. Word has length 84 [2022-11-03 02:44:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:42,875 INFO L495 AbstractCegarLoop]: Abstraction has 10759 states and 15320 transitions. [2022-11-03 02:44:42,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:44:42,876 INFO L276 IsEmpty]: Start isEmpty. Operand 10759 states and 15320 transitions. [2022-11-03 02:44:42,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 02:44:42,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:42,878 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:42,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:44:42,878 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:44:42,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:42,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1896849701, now seen corresponding path program 1 times [2022-11-03 02:44:42,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:42,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779240499] [2022-11-03 02:44:42,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:42,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-03 02:44:43,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:43,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779240499] [2022-11-03 02:44:43,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779240499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:43,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:43,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:44:43,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771888704] [2022-11-03 02:44:43,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:43,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:44:43,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:43,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:44:43,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:43,401 INFO L87 Difference]: Start difference. First operand 10759 states and 15320 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:44:47,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:47,385 INFO L93 Difference]: Finished difference Result 26684 states and 37829 transitions. [2022-11-03 02:44:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:44:47,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2022-11-03 02:44:47,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:47,471 INFO L225 Difference]: With dead ends: 26684 [2022-11-03 02:44:47,471 INFO L226 Difference]: Without dead ends: 15938 [2022-11-03 02:44:47,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:44:47,513 INFO L413 NwaCegarLoop]: 2856 mSDtfsCounter, 2449 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 5082 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:47,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 5082 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 02:44:47,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15938 states. [2022-11-03 02:44:48,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15938 to 15890. [2022-11-03 02:44:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15890 states, 9552 states have (on average 1.2934463986599665) internal successors, (12355), 10012 states have internal predecessors, (12355), 5044 states have call successors, (5044), 1307 states have call predecessors, (5044), 1290 states have return successors, (5044), 4816 states have call predecessors, (5044), 5040 states have call successors, (5044) [2022-11-03 02:44:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15890 states to 15890 states and 22443 transitions. [2022-11-03 02:44:48,400 INFO L78 Accepts]: Start accepts. Automaton has 15890 states and 22443 transitions. Word has length 91 [2022-11-03 02:44:48,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:48,401 INFO L495 AbstractCegarLoop]: Abstraction has 15890 states and 22443 transitions. [2022-11-03 02:44:48,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:44:48,401 INFO L276 IsEmpty]: Start isEmpty. Operand 15890 states and 22443 transitions. [2022-11-03 02:44:48,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-03 02:44:48,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:48,408 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:44:48,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:44:48,414 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 2 more)] === [2022-11-03 02:44:48,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:48,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1658384968, now seen corresponding path program 1 times [2022-11-03 02:44:48,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:48,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789110050] [2022-11-03 02:44:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:48,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:50,493 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-03 02:44:50,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:50,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789110050] [2022-11-03 02:44:50,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789110050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:50,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:50,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:44:50,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803312491] [2022-11-03 02:44:50,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:50,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:44:50,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:50,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:44:50,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:44:50,497 INFO L87 Difference]: Start difference. First operand 15890 states and 22443 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:44:55,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:44:55,224 INFO L93 Difference]: Finished difference Result 15896 states and 22448 transitions. [2022-11-03 02:44:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:44:55,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 123 [2022-11-03 02:44:55,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:44:55,306 INFO L225 Difference]: With dead ends: 15896 [2022-11-03 02:44:55,307 INFO L226 Difference]: Without dead ends: 15894 [2022-11-03 02:44:55,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:44:55,314 INFO L413 NwaCegarLoop]: 2286 mSDtfsCounter, 2601 mSDsluCounter, 5260 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2607 SdHoareTripleChecker+Valid, 6850 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:44:55,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2607 Valid, 6850 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 02:44:55,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15894 states. [2022-11-03 02:44:56,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15894 to 15894. [2022-11-03 02:44:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15894 states, 9555 states have (on average 1.2933542647828362) internal successors, (12358), 10015 states have internal predecessors, (12358), 5044 states have call successors, (5044), 1308 states have call predecessors, (5044), 1291 states have return successors, (5044), 4816 states have call predecessors, (5044), 5040 states have call successors, (5044) [2022-11-03 02:44:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15894 states to 15894 states and 22446 transitions. [2022-11-03 02:44:56,405 INFO L78 Accepts]: Start accepts. Automaton has 15894 states and 22446 transitions. Word has length 123 [2022-11-03 02:44:56,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:44:56,406 INFO L495 AbstractCegarLoop]: Abstraction has 15894 states and 22446 transitions. [2022-11-03 02:44:56,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:44:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 15894 states and 22446 transitions. [2022-11-03 02:44:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-03 02:44:56,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:44:56,410 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 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] [2022-11-03 02:44:56,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:44:56,411 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 2 more)] === [2022-11-03 02:44:56,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:44:56,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1365861904, now seen corresponding path program 1 times [2022-11-03 02:44:56,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:44:56,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008231177] [2022-11-03 02:44:56,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:44:56,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:44:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:44:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-11-03 02:44:58,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:44:58,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008231177] [2022-11-03 02:44:58,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008231177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:44:58,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:44:58,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:44:58,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580712703] [2022-11-03 02:44:58,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:44:58,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:44:58,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:44:58,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:44:58,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:44:58,196 INFO L87 Difference]: Start difference. First operand 15894 states and 22446 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:45:02,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:45:02,867 INFO L93 Difference]: Finished difference Result 15900 states and 22451 transitions. [2022-11-03 02:45:02,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:45:02,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 131 [2022-11-03 02:45:02,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:45:02,952 INFO L225 Difference]: With dead ends: 15900 [2022-11-03 02:45:02,952 INFO L226 Difference]: Without dead ends: 15898 [2022-11-03 02:45:02,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:45:02,966 INFO L413 NwaCegarLoop]: 2289 mSDtfsCounter, 2595 mSDsluCounter, 5260 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 6853 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:45:02,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2600 Valid, 6853 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 02:45:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15898 states. [2022-11-03 02:45:04,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15898 to 15898. [2022-11-03 02:45:04,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15898 states, 9558 states have (on average 1.2932621887424147) internal successors, (12361), 10018 states have internal predecessors, (12361), 5044 states have call successors, (5044), 1309 states have call predecessors, (5044), 1292 states have return successors, (5044), 4816 states have call predecessors, (5044), 5040 states have call successors, (5044) [2022-11-03 02:45:04,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15898 states to 15898 states and 22449 transitions. [2022-11-03 02:45:04,161 INFO L78 Accepts]: Start accepts. Automaton has 15898 states and 22449 transitions. Word has length 131 [2022-11-03 02:45:04,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:45:04,162 INFO L495 AbstractCegarLoop]: Abstraction has 15898 states and 22449 transitions. [2022-11-03 02:45:04,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:45:04,162 INFO L276 IsEmpty]: Start isEmpty. Operand 15898 states and 22449 transitions. [2022-11-03 02:45:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-03 02:45:04,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:45:04,170 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 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] [2022-11-03 02:45:04,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:45:04,171 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:45:04,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:45:04,171 INFO L85 PathProgramCache]: Analyzing trace with hash -963294740, now seen corresponding path program 1 times [2022-11-03 02:45:04,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:45:04,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484745980] [2022-11-03 02:45:04,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:45:04,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:45:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:45:05,988 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-11-03 02:45:05,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:45:05,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484745980] [2022-11-03 02:45:05,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484745980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:45:05,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:45:05,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:45:05,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601346621] [2022-11-03 02:45:05,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:45:05,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:45:05,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:45:05,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:45:05,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:45:05,994 INFO L87 Difference]: Start difference. First operand 15898 states and 22449 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:45:13,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:45:13,327 INFO L93 Difference]: Finished difference Result 30862 states and 43804 transitions. [2022-11-03 02:45:13,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:45:13,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 136 [2022-11-03 02:45:13,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:45:13,486 INFO L225 Difference]: With dead ends: 30862 [2022-11-03 02:45:13,486 INFO L226 Difference]: Without dead ends: 30860 [2022-11-03 02:45:13,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:45:13,512 INFO L413 NwaCegarLoop]: 3008 mSDtfsCounter, 2579 mSDsluCounter, 9312 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2583 SdHoareTripleChecker+Valid, 11240 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:45:13,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2583 Valid, 11240 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 02:45:13,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30860 states. [2022-11-03 02:45:15,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30860 to 30818. [2022-11-03 02:45:15,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30818 states, 18519 states have (on average 1.29477833576327) internal successors, (23978), 19445 states have internal predecessors, (23978), 9832 states have call successors, (9832), 2531 states have call predecessors, (9832), 2463 states have return successors, (9948), 9325 states have call predecessors, (9948), 9824 states have call successors, (9948) [2022-11-03 02:45:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30818 states to 30818 states and 43758 transitions. [2022-11-03 02:45:15,530 INFO L78 Accepts]: Start accepts. Automaton has 30818 states and 43758 transitions. Word has length 136 [2022-11-03 02:45:15,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:45:15,531 INFO L495 AbstractCegarLoop]: Abstraction has 30818 states and 43758 transitions. [2022-11-03 02:45:15,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:45:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand 30818 states and 43758 transitions. [2022-11-03 02:45:15,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-03 02:45:15,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:45:15,538 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 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] [2022-11-03 02:45:15,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:45:15,538 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 2 more)] === [2022-11-03 02:45:15,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:45:15,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1267617584, now seen corresponding path program 1 times [2022-11-03 02:45:15,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:45:15,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280070829] [2022-11-03 02:45:15,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:45:15,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:45:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:45:17,564 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-11-03 02:45:17,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:45:17,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280070829] [2022-11-03 02:45:17,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280070829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:45:17,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:45:17,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:45:17,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393195296] [2022-11-03 02:45:17,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:45:17,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:45:17,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:45:17,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:45:17,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:45:17,567 INFO L87 Difference]: Start difference. First operand 30818 states and 43758 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 02:45:25,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:45:25,201 INFO L93 Difference]: Finished difference Result 60118 states and 86530 transitions. [2022-11-03 02:45:25,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:45:25,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2022-11-03 02:45:25,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:45:25,495 INFO L225 Difference]: With dead ends: 60118 [2022-11-03 02:45:25,495 INFO L226 Difference]: Without dead ends: 60116 [2022-11-03 02:45:25,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:45:25,520 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 2549 mSDsluCounter, 9279 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2552 SdHoareTripleChecker+Valid, 11176 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:45:25,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2552 Valid, 11176 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 02:45:25,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60116 states. [2022-11-03 02:45:29,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60116 to 60088. [2022-11-03 02:45:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60088 states, 36062 states have (on average 1.2946314680272863) internal successors, (46687), 37882 states have internal predecessors, (46687), 19156 states have call successors, (19156), 5002 states have call predecessors, (19156), 4866 states have return successors, (20660), 18123 states have call predecessors, (20660), 19140 states have call successors, (20660) [2022-11-03 02:45:29,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60088 states to 60088 states and 86503 transitions. [2022-11-03 02:45:29,314 INFO L78 Accepts]: Start accepts. Automaton has 60088 states and 86503 transitions. Word has length 141 [2022-11-03 02:45:29,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:45:29,318 INFO L495 AbstractCegarLoop]: Abstraction has 60088 states and 86503 transitions. [2022-11-03 02:45:29,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 02:45:29,318 INFO L276 IsEmpty]: Start isEmpty. Operand 60088 states and 86503 transitions. [2022-11-03 02:45:29,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-03 02:45:29,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:45:29,324 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 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] [2022-11-03 02:45:29,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:45:29,324 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_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 2 more)] === [2022-11-03 02:45:29,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:45:29,325 INFO L85 PathProgramCache]: Analyzing trace with hash 572306611, now seen corresponding path program 1 times [2022-11-03 02:45:29,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:45:29,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375305738] [2022-11-03 02:45:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:45:29,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:45:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:45:30,539 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-03 02:45:30,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:45:30,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375305738] [2022-11-03 02:45:30,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375305738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:45:30,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:45:30,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:45:30,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002657160] [2022-11-03 02:45:30,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:45:30,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:45:30,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:45:30,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:45:30,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:45:30,542 INFO L87 Difference]: Start difference. First operand 60088 states and 86503 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:45:48,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:45:48,880 INFO L93 Difference]: Finished difference Result 178896 states and 257689 transitions. [2022-11-03 02:45:48,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:45:48,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 138 [2022-11-03 02:45:48,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:45:49,697 INFO L225 Difference]: With dead ends: 178896 [2022-11-03 02:45:49,698 INFO L226 Difference]: Without dead ends: 119272 [2022-11-03 02:45:49,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:45:49,985 INFO L413 NwaCegarLoop]: 5005 mSDtfsCounter, 5326 mSDsluCounter, 5707 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5455 SdHoareTripleChecker+Valid, 9749 SdHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:45:49,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5455 Valid, 9749 Invalid, 4244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2022-11-03 02:45:50,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119272 states. [2022-11-03 02:45:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119272 to 118836. [2022-11-03 02:45:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118836 states, 71248 states have (on average 1.295124073658208) internal successors, (92275), 74924 states have internal predecessors, (92275), 37944 states have call successors, (37944), 9908 states have call predecessors, (37944), 9640 states have return successors, (40968), 35835 states have call predecessors, (40968), 37928 states have call successors, (40968) [2022-11-03 02:45:58,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118836 states to 118836 states and 171187 transitions. [2022-11-03 02:45:58,468 INFO L78 Accepts]: Start accepts. Automaton has 118836 states and 171187 transitions. Word has length 138 [2022-11-03 02:45:58,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:45:58,468 INFO L495 AbstractCegarLoop]: Abstraction has 118836 states and 171187 transitions. [2022-11-03 02:45:58,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:45:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 118836 states and 171187 transitions. [2022-11-03 02:45:58,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-03 02:45:58,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:45:58,475 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 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] [2022-11-03 02:45:58,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:45:58,476 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-03 02:45:58,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:45:58,476 INFO L85 PathProgramCache]: Analyzing trace with hash -157873108, now seen corresponding path program 1 times [2022-11-03 02:45:58,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:45:58,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627904924] [2022-11-03 02:45:58,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:45:58,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:45:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-03 02:46:00,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:46:00,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627904924] [2022-11-03 02:46:00,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627904924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:00,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:00,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:46:00,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105639566] [2022-11-03 02:46:00,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:00,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:46:00,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:46:00,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:46:00,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:00,345 INFO L87 Difference]: Start difference. First operand 118836 states and 171187 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)