./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4b4d1109d3d8d53e29825c3b476b87cdd6fec06f9f511afc6c3035bd20ad8bf5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:34:14,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:34:14,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:34:14,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:34:14,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:34:14,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:34:14,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:34:14,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:34:14,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:34:14,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:34:14,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:34:14,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:34:14,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:34:14,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:34:14,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:34:14,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:34:14,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:34:14,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:34:14,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:34:14,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:34:14,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:34:14,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:34:14,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:34:14,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:34:14,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:34:14,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:34:14,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:34:14,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:34:14,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:34:14,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:34:14,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:34:14,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:34:14,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:34:14,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:34:14,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:34:14,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:34:14,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:34:14,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:34:14,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:34:14,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:34:14,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:34:14,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:34:14,966 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:34:14,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:34:14,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:34:14,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:34:14,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:34:14,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:34:14,969 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:34:14,969 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:34:14,970 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:34:14,970 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:34:14,971 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:34:14,972 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:34:14,972 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:34:14,972 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:34:14,972 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:34:14,973 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:34:14,973 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:34:14,973 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:34:14,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:34:14,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:34:14,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:34:14,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:34:14,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:34:14,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:34:14,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:34:14,976 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:34:14,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:34:14,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:34:14,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:34:14,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:34:14,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:34:14,978 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:34:14,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:34:14,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:34:14,978 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:34:14,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:34:14,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:34:14,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:34:14,979 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_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b4d1109d3d8d53e29825c3b476b87cdd6fec06f9f511afc6c3035bd20ad8bf5 [2022-11-22 02:34:15,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:34:15,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:34:15,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:34:15,382 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:34:15,383 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:34:15,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2022-11-22 02:34:19,088 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:34:20,091 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:34:20,092 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2022-11-22 02:34:20,182 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/data/dc53de0c1/0fae87165dea4da7bdbceadef0eaa2a4/FLAGeb50221e7 [2022-11-22 02:34:20,204 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/data/dc53de0c1/0fae87165dea4da7bdbceadef0eaa2a4 [2022-11-22 02:34:20,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:34:20,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:34:20,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:34:20,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:34:20,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:34:20,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:34:20" (1/1) ... [2022-11-22 02:34:20,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13990631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:20, skipping insertion in model container [2022-11-22 02:34:20,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:34:20" (1/1) ... [2022-11-22 02:34:20,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:34:20,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:34:29,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[800980,800993] [2022-11-22 02:34:29,658 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801146,801159] [2022-11-22 02:34:29,660 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801310,801323] [2022-11-22 02:34:29,660 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801475,801488] [2022-11-22 02:34:29,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:34:29,790 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:34:30,973 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[800980,800993] [2022-11-22 02:34:30,974 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801146,801159] [2022-11-22 02:34:30,974 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801310,801323] [2022-11-22 02:34:30,975 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i[801475,801488] [2022-11-22 02:34:30,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:34:31,421 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:34:31,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31 WrapperNode [2022-11-22 02:34:31,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:34:31,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:34:31,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:34:31,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:34:31,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:31,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:32,657 INFO L138 Inliner]: procedures = 733, calls = 11156, calls flagged for inlining = 427, calls inlined = 391, statements flattened = 21334 [2022-11-22 02:34:32,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:34:32,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:34:32,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:34:32,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:34:32,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:32,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:33,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:33,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:33,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:33,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:33,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:33,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:33,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:34:33,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:34:33,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:34:33,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:34:33,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (1/1) ... [2022-11-22 02:34:33,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:34:33,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:34:33,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:34:33,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:34:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mac_event_disconnected [2022-11-22 02:34:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mac_event_disconnected [2022-11-22 02:34:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_register [2022-11-22 02:34:33,951 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_register [2022-11-22 02:34:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-22 02:34:33,951 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-22 02:34:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-22 02:34:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:34:33,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:34:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_access [2022-11-22 02:34:33,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_access [2022-11-22 02:34:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-22 02:34:33,953 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-22 02:34:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_35_6 [2022-11-22 02:34:33,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_35_6 [2022-11-22 02:34:33,953 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 02:34:33,953 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 02:34:33,954 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-22 02:34:33,954 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-22 02:34:33,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:34:33,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:34:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_channel [2022-11-22 02:34:33,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_channel [2022-11-22 02:34:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mesh [2022-11-22 02:34:33,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mesh [2022-11-22 02:34:33,956 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-22 02:34:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-22 02:34:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2022-11-22 02:34:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2022-11-22 02:34:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 02:34:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 02:34:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_lbs_private [2022-11-22 02:34:33,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_lbs_private [2022-11-22 02:34:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ps_confirm_sleep [2022-11-22 02:34:33,958 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ps_confirm_sleep [2022-11-22 02:34:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-22 02:34:33,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2022-11-22 02:34:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_free [2022-11-22 02:34:33,959 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_free [2022-11-22 02:34:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 02:34:33,959 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 02:34:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_20 [2022-11-22 02:34:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_20 [2022-11-22 02:34:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2022-11-22 02:34:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2022-11-22 02:34:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-22 02:34:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-22 02:34:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_reg [2022-11-22 02:34:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_reg [2022-11-22 02:34:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 02:34:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:34:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:34:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 02:34:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 02:34:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-22 02:34:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-22 02:34:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 02:34:34,054 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 02:34:34,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:34:34,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:34:34,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 02:34:34,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 02:34:34,054 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 02:34:34,054 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 02:34:34,054 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-22 02:34:34,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_dummy_resourceless_instance_16 [2022-11-22 02:34:34,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_dummy_resourceless_instance_16 [2022-11-22 02:34:34,055 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_key_material [2022-11-22 02:34:34,055 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_key_material [2022-11-22 02:34:34,055 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd_async [2022-11-22 02:34:34,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd_async [2022-11-22 02:34:34,055 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_wep_keys [2022-11-22 02:34:34,055 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_wep_keys [2022-11-22 02:34:34,055 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 02:34:34,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 02:34:34,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:34:34,056 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_auth_to_authtype [2022-11-22 02:34:34,056 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_auth_to_authtype [2022-11-22 02:34:34,056 INFO L130 BoogieDeclarations]: Found specification of procedure auto_deepsleep_timer_fn [2022-11-22 02:34:34,056 INFO L138 BoogieDeclarations]: Found implementation of procedure auto_deepsleep_timer_fn [2022-11-22 02:34:34,056 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-22 02:34:34,056 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-22 02:34:34,056 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_sleepparams_read [2022-11-22 02:34:34,056 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_sleepparams_read [2022-11-22 02:34:34,056 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-22 02:34:34,057 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-22 02:34:34,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 02:34:34,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 02:34:34,057 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_get_reg [2022-11-22 02:34:34,057 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_get_reg [2022-11-22 02:34:34,057 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_eth_stop [2022-11-22 02:34:34,057 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_eth_stop [2022-11-22 02:34:34,057 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_free_adapter [2022-11-22 02:34:34,057 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_free_adapter [2022-11-22 02:34:34,057 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 02:34:34,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 02:34:34,058 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_iface_active [2022-11-22 02:34:34,058 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_iface_active [2022-11-22 02:34:34,058 INFO L130 BoogieDeclarations]: Found specification of procedure _internal_start_scan [2022-11-22 02:34:34,058 INFO L138 BoogieDeclarations]: Found implementation of procedure _internal_start_scan [2022-11-22 02:34:34,058 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_ps_mode [2022-11-22 02:34:34,058 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_ps_mode [2022-11-22 02:34:34,058 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_mesh [2022-11-22 02:34:34,058 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_mesh [2022-11-22 02:34:34,058 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-22 02:34:34,060 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-22 02:34:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure add_ie_rates [2022-11-22 02:34:34,060 INFO L138 BoogieDeclarations]: Found implementation of procedure add_ie_rates [2022-11-22 02:34:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:34:34,060 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 02:34:34,060 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 02:34:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_28_2 [2022-11-22 02:34:34,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_28_2 [2022-11-22 02:34:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_mesh [2022-11-22 02:34:34,061 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_mesh [2022-11-22 02:34:34,061 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ethtool_get_eeprom_len [2022-11-22 02:34:34,062 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ethtool_get_eeprom_len [2022-11-22 02:34:34,062 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-22 02:34:34,062 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-22 02:34:34,062 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_async [2022-11-22 02:34:34,062 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_async [2022-11-22 02:34:34,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-22 02:34:34,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-22 02:34:34,063 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_activated [2022-11-22 02:34:34,063 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_activated [2022-11-22 02:34:34,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:34:34,063 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_complete_command [2022-11-22 02:34:34,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_complete_command [2022-11-22 02:34:34,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:34:34,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:34:34,064 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-11-22 02:34:34,064 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-11-22 02:34:34,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:34:34,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:34:34,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:34:34,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:34:34,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:34:34,065 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-22 02:34:34,065 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-22 02:34:34,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_netdev_mqs [2022-11-22 02:34:34,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_netdev_mqs [2022-11-22 02:34:34,066 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-22 02:34:34,066 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-22 02:34:34,066 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-22 02:34:34,066 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-22 02:34:34,066 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-22 02:34:34,067 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-22 02:34:34,067 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_disconnect [2022-11-22 02:34:34,067 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_disconnect [2022-11-22 02:34:34,067 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-22 02:34:34,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-22 02:34:34,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:34:34,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-22 02:34:34,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-22 02:34:34,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 02:34:34,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 02:34:34,068 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-22 02:34:34,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-22 02:34:34,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:34:34,069 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_stop [2022-11-22 02:34:34,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_stop [2022-11-22 02:34:34,069 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_dev_open [2022-11-22 02:34:34,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_dev_open [2022-11-22 02:34:34,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:34:34,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:34:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-22 02:34:34,070 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-22 02:34:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 02:34:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 02:34:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_wep_keys [2022-11-22 02:34:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_wep_keys [2022-11-22 02:34:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:34:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_complete_command [2022-11-22 02:34:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_complete_command [2022-11-22 02:34:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 02:34:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-22 02:34:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-22 02:34:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:34:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:34:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-22 02:34:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-22 02:34:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:34:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:34:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 02:34:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 02:34:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_snmp_mib [2022-11-22 02:34:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_snmp_mib [2022-11-22 02:34:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_update_mcast [2022-11-22 02:34:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_update_mcast [2022-11-22 02:34:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_11d_domain_info [2022-11-22 02:34:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_11d_domain_info [2022-11-22 02:34:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 02:34:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 02:34:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 02:34:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 02:34:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 02:34:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 02:34:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_rates [2022-11-22 02:34:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_rates [2022-11-22 02:34:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-22 02:34:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-22 02:34:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-22 02:34:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-22 02:34:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-22 02:34:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-22 02:34:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_iface_type [2022-11-22 02:34:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_iface_type [2022-11-22 02:34:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_control [2022-11-22 02:34:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_control [2022-11-22 02:34:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-22 02:34:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-22 02:34:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:34:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:34:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2022-11-22 02:34:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2022-11-22 02:34:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 02:34:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 02:34:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_dev_open [2022-11-22 02:34:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_dev_open [2022-11-22 02:34:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:34:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:34:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2022-11-22 02:34:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2022-11-22 02:34:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:34:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:34:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 02:34:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 02:34:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_get_channel [2022-11-22 02:34:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_get_channel [2022-11-22 02:34:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 02:34:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 02:34:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 02:34:34,094 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 02:34:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2022-11-22 02:34:34,094 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2022-11-22 02:34:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-22 02:34:34,094 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-22 02:34:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure write_file_dummy [2022-11-22 02:34:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure write_file_dummy [2022-11-22 02:34:34,095 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_multicast_list [2022-11-22 02:34:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_multicast_list [2022-11-22 02:34:34,095 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2022-11-22 02:34:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2022-11-22 02:34:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_15 [2022-11-22 02:34:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_15 [2022-11-22 02:34:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:34:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:34:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_bss [2022-11-22 02:34:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_bss [2022-11-22 02:34:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_thread [2022-11-22 02:34:34,097 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_thread [2022-11-22 02:34:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_done [2022-11-22 02:34:34,097 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_done [2022-11-22 02:34:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 02:34:34,097 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 02:34:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-22 02:34:34,098 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-22 02:34:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-22 02:34:34,098 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-22 02:34:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2022-11-22 02:34:34,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2022-11-22 02:34:34,099 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-22 02:34:34,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-22 02:34:34,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:34:34,099 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 02:34:34,099 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 02:34:34,099 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_read [2022-11-22 02:34:34,100 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_read [2022-11-22 02:34:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_deep_sleep [2022-11-22 02:34:34,100 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_deep_sleep [2022-11-22 02:34:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex [2022-11-22 02:34:34,100 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex [2022-11-22 02:34:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 02:34:34,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 02:34:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:34:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_threshold_write [2022-11-22 02:34:34,101 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_threshold_write [2022-11-22 02:34:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_setup_firmware [2022-11-22 02:34:34,101 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_setup_firmware [2022-11-22 02:34:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:34:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 02:34:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 02:34:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config [2022-11-22 02:34:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config [2022-11-22 02:34:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 02:34:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 02:34:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 02:34:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 02:34:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_802_11_sleep_params [2022-11-22 02:34:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_802_11_sleep_params [2022-11-22 02:34:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_monitor_mode [2022-11-22 02:34:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_monitor_mode [2022-11-22 02:34:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2022-11-22 02:34:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2022-11-22 02:34:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2022-11-22 02:34:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2022-11-22 02:34:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:34:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:34:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 02:34:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 02:34:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-22 02:34:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-22 02:34:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 02:34:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 02:34:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_bss_get_ie [2022-11-22 02:34:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_bss_get_ie [2022-11-22 02:34:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 02:34:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 02:34:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2022-11-22 02:34:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2022-11-22 02:34:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_command_queue_empty [2022-11-22 02:34:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_command_queue_empty [2022-11-22 02:34:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-11-22 02:34:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-11-22 02:34:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_enable_rsn [2022-11-22 02:34:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_enable_rsn [2022-11-22 02:34:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_card [2022-11-22 02:34:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_card [2022-11-22 02:34:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 02:34:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 02:34:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_event [2022-11-22 02:34:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_event [2022-11-22 02:34:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 02:34:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 02:34:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-22 02:34:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-22 02:34:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_mic_failureevent [2022-11-22 02:34:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_mic_failureevent [2022-11-22 02:34:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 02:34:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 02:34:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_post [2022-11-22 02:34:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_post [2022-11-22 02:34:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:34:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:34:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 02:34:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 02:34:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-11-22 02:34:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2022-11-22 02:34:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-22 02:34:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-22 02:34:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:34:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_iface [2022-11-22 02:34:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_iface [2022-11-22 02:34:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-22 02:34:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-22 02:34:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:34:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:34:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_radio [2022-11-22 02:34:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_radio [2022-11-22 02:34:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_33_2 [2022-11-22 02:34:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_33_2 [2022-11-22 02:34:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mcast_addrs [2022-11-22 02:34:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mcast_addrs [2022-11-22 02:34:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_iface [2022-11-22 02:34:34,115 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_iface [2022-11-22 02:34:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 02:34:34,115 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 02:34:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_28 [2022-11-22 02:34:34,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_28 [2022-11-22 02:34:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-22 02:34:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-22 02:34:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure mesh_get_default_parameters [2022-11-22 02:34:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mesh_get_default_parameters [2022-11-22 02:34:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___3 [2022-11-22 02:34:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___3 [2022-11-22 02:34:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___0 [2022-11-22 02:34:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___0 [2022-11-22 02:34:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_debugfs_read [2022-11-22 02:34:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_debugfs_read [2022-11-22 02:34:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 02:34:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 02:34:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-22 02:34:34,118 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-22 02:34:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_ssid_tlv [2022-11-22 02:34:34,118 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_ssid_tlv [2022-11-22 02:34:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:34:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:34:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_mesh_config_send [2022-11-22 02:34:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_mesh_config_send [2022-11-22 02:34:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 02:34:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 02:34:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config_send [2022-11-22 02:34:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config_send [2022-11-22 02:34:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_disconnected [2022-11-22 02:34:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_disconnected [2022-11-22 02:34:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 02:34:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 02:34:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2022-11-22 02:34:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2022-11-22 02:34:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cleanup_and_insert_cmd [2022-11-22 02:34:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cleanup_and_insert_cmd [2022-11-22 02:34:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-22 02:34:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-22 02:34:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 02:34:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_host_sleep [2022-11-22 02:34:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_host_sleep [2022-11-22 02:34:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:34:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:34:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:34:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-22 02:34:34,123 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-22 02:34:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_lbs_private [2022-11-22 02:34:34,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_lbs_private [2022-11-22 02:34:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-22 02:34:34,123 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-22 02:34:36,724 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:34:36,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:34:39,284 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:43:36,227 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:43:40,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:43:40,403 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-22 02:43:40,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:43:40 BoogieIcfgContainer [2022-11-22 02:43:40,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:43:40,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:43:40,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:43:40,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:43:40,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:34:20" (1/3) ... [2022-11-22 02:43:40,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224edcc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:43:40, skipping insertion in model container [2022-11-22 02:43:40,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:31" (2/3) ... [2022-11-22 02:43:40,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224edcc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:43:40, skipping insertion in model container [2022-11-22 02:43:40,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:43:40" (3/3) ... [2022-11-22 02:43:40,420 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-libertas-libertas.cil.i [2022-11-22 02:43:40,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:43:40,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 02:43:40,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:43:40,622 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;@6942c45e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:43:40,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 02:43:40,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 4844 states, 2994 states have (on average 1.3313293253173013) internal successors, (3986), 3180 states have internal predecessors, (3986), 1657 states have call successors, (1657), 192 states have call predecessors, (1657), 191 states have return successors, (1637), 1587 states have call predecessors, (1637), 1637 states have call successors, (1637) [2022-11-22 02:43:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 02:43:40,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:43:40,654 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:43:40,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:43:40,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:43:40,660 INFO L85 PathProgramCache]: Analyzing trace with hash 460584198, now seen corresponding path program 1 times [2022-11-22 02:43:40,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:43:40,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139530244] [2022-11-22 02:43:40,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:43:40,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:43:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:43:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:43:45,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:43:45,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139530244] [2022-11-22 02:43:45,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139530244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:43:45,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:43:45,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:43:45,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603559513] [2022-11-22 02:43:45,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:43:45,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:43:45,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:43:45,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:43:45,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:43:45,114 INFO L87 Difference]: Start difference. First operand has 4844 states, 2994 states have (on average 1.3313293253173013) internal successors, (3986), 3180 states have internal predecessors, (3986), 1657 states have call successors, (1657), 192 states have call predecessors, (1657), 191 states have return successors, (1637), 1587 states have call predecessors, (1637), 1637 states have call successors, (1637) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-22 02:43:47,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:52,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:54,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:43:54,399 INFO L93 Difference]: Finished difference Result 9691 states and 14600 transitions. [2022-11-22 02:43:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:43:54,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 34 [2022-11-22 02:43:54,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:43:54,465 INFO L225 Difference]: With dead ends: 9691 [2022-11-22 02:43:54,465 INFO L226 Difference]: Without dead ends: 4833 [2022-11-22 02:43:54,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:43:54,503 INFO L413 NwaCegarLoop]: 6707 mSDtfsCounter, 37 mSDsluCounter, 6687 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 13394 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:43:54,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 13394 Invalid, 1096 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1095 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-11-22 02:43:54,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2022-11-22 02:43:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4833. [2022-11-22 02:43:55,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4833 states, 2997 states have (on average 1.3219886553219886) internal successors, (3962), 3167 states have internal predecessors, (3962), 1636 states have call successors, (1636), 198 states have call predecessors, (1636), 197 states have return successors, (1633), 1583 states have call predecessors, (1633), 1633 states have call successors, (1633) [2022-11-22 02:43:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4833 states to 4833 states and 7231 transitions. [2022-11-22 02:43:55,165 INFO L78 Accepts]: Start accepts. Automaton has 4833 states and 7231 transitions. Word has length 34 [2022-11-22 02:43:55,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:43:55,166 INFO L495 AbstractCegarLoop]: Abstraction has 4833 states and 7231 transitions. [2022-11-22 02:43:55,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-22 02:43:55,166 INFO L276 IsEmpty]: Start isEmpty. Operand 4833 states and 7231 transitions. [2022-11-22 02:43:55,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-22 02:43:55,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:43:55,170 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:43:55,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:43:55,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:43:55,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:43:55,171 INFO L85 PathProgramCache]: Analyzing trace with hash 534665862, now seen corresponding path program 1 times [2022-11-22 02:43:55,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:43:55,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165258663] [2022-11-22 02:43:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:43:55,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:43:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:43:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 02:43:59,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:43:59,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165258663] [2022-11-22 02:43:59,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165258663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:43:59,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:43:59,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:43:59,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028049739] [2022-11-22 02:43:59,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:43:59,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:43:59,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:43:59,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:43:59,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:43:59,394 INFO L87 Difference]: Start difference. First operand 4833 states and 7231 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 02:44:01,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:44:09,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:44:12,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:12,912 INFO L93 Difference]: Finished difference Result 5460 states and 8053 transitions. [2022-11-22 02:44:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:44:12,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2022-11-22 02:44:12,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:12,948 INFO L225 Difference]: With dead ends: 5460 [2022-11-22 02:44:12,948 INFO L226 Difference]: Without dead ends: 5458 [2022-11-22 02:44:12,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:44:12,955 INFO L413 NwaCegarLoop]: 6817 mSDtfsCounter, 4303 mSDsluCounter, 17030 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4307 SdHoareTripleChecker+Valid, 23847 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:12,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4307 Valid, 23847 Invalid, 1965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1962 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-11-22 02:44:12,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5458 states. [2022-11-22 02:44:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5458 to 5458. [2022-11-22 02:44:13,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 3385 states have (on average 1.317282127031019) internal successors, (4459), 3565 states have internal predecessors, (4459), 1797 states have call successors, (1797), 274 states have call predecessors, (1797), 273 states have return successors, (1795), 1744 states have call predecessors, (1795), 1794 states have call successors, (1795) [2022-11-22 02:44:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 8051 transitions. [2022-11-22 02:44:13,408 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 8051 transitions. Word has length 48 [2022-11-22 02:44:13,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:44:13,408 INFO L495 AbstractCegarLoop]: Abstraction has 5458 states and 8051 transitions. [2022-11-22 02:44:13,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 02:44:13,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 8051 transitions. [2022-11-22 02:44:13,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 02:44:13,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:44:13,415 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:44:13,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:44:13,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:44:13,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:44:13,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1985641347, now seen corresponding path program 1 times [2022-11-22 02:44:13,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:44:13,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674890603] [2022-11-22 02:44:13,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:44:13,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:44:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:44:17,455 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 02:44:17,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:44:17,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674890603] [2022-11-22 02:44:17,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674890603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:17,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:44:17,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:44:17,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268693407] [2022-11-22 02:44:17,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:17,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:44:17,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:17,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:44:17,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:44:17,459 INFO L87 Difference]: Start difference. First operand 5458 states and 8051 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 02:44:19,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:44:25,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:44:29,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:29,481 INFO L93 Difference]: Finished difference Result 5464 states and 8056 transitions. [2022-11-22 02:44:29,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:44:29,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 53 [2022-11-22 02:44:29,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:29,518 INFO L225 Difference]: With dead ends: 5464 [2022-11-22 02:44:29,518 INFO L226 Difference]: Without dead ends: 5462 [2022-11-22 02:44:29,523 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 [2022-11-22 02:44:29,524 INFO L413 NwaCegarLoop]: 6820 mSDtfsCounter, 4298 mSDsluCounter, 17030 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4301 SdHoareTripleChecker+Valid, 23850 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:29,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4301 Valid, 23850 Invalid, 1965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1962 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2022-11-22 02:44:29,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5462 states. [2022-11-22 02:44:30,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5462 to 5462. [2022-11-22 02:44:30,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 3388 states have (on average 1.3170011806375443) internal successors, (4462), 3568 states have internal predecessors, (4462), 1797 states have call successors, (1797), 275 states have call predecessors, (1797), 274 states have return successors, (1795), 1744 states have call predecessors, (1795), 1794 states have call successors, (1795) [2022-11-22 02:44:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 8054 transitions. [2022-11-22 02:44:30,093 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 8054 transitions. Word has length 53 [2022-11-22 02:44:30,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:44:30,094 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 8054 transitions. [2022-11-22 02:44:30,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 02:44:30,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 8054 transitions. [2022-11-22 02:44:30,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-22 02:44:30,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:44:30,099 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:44:30,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:44:30,099 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:44:30,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:44:30,101 INFO L85 PathProgramCache]: Analyzing trace with hash 407472230, now seen corresponding path program 1 times [2022-11-22 02:44:30,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:44:30,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210048997] [2022-11-22 02:44:30,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:44:30,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:44:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:44:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 02:44:33,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:44:33,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210048997] [2022-11-22 02:44:33,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210048997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:33,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:44:33,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:44:33,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209428194] [2022-11-22 02:44:33,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:33,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:44:33,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:33,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:44:33,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:44:33,777 INFO L87 Difference]: Start difference. First operand 5462 states and 8054 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 02:44:36,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:44:42,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:44:47,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:47,502 INFO L93 Difference]: Finished difference Result 8327 states and 12220 transitions. [2022-11-22 02:44:47,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:44:47,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 58 [2022-11-22 02:44:47,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:47,557 INFO L225 Difference]: With dead ends: 8327 [2022-11-22 02:44:47,557 INFO L226 Difference]: Without dead ends: 8323 [2022-11-22 02:44:47,564 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 [2022-11-22 02:44:47,565 INFO L413 NwaCegarLoop]: 8992 mSDtfsCounter, 6905 mSDsluCounter, 21637 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6906 SdHoareTripleChecker+Valid, 30629 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:47,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6906 Valid, 30629 Invalid, 2495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2490 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2022-11-22 02:44:47,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8323 states. [2022-11-22 02:44:48,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8323 to 8309. [2022-11-22 02:44:48,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8309 states, 5195 states have (on average 1.3199230028873916) internal successors, (6857), 5451 states have internal predecessors, (6857), 2642 states have call successors, (2642), 471 states have call predecessors, (2642), 469 states have return successors, (2703), 2574 states have call predecessors, (2703), 2637 states have call successors, (2703) [2022-11-22 02:44:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8309 states to 8309 states and 12202 transitions. [2022-11-22 02:44:48,149 INFO L78 Accepts]: Start accepts. Automaton has 8309 states and 12202 transitions. Word has length 58 [2022-11-22 02:44:48,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:44:48,150 INFO L495 AbstractCegarLoop]: Abstraction has 8309 states and 12202 transitions. [2022-11-22 02:44:48,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 02:44:48,150 INFO L276 IsEmpty]: Start isEmpty. Operand 8309 states and 12202 transitions. [2022-11-22 02:44:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-22 02:44:48,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:44:48,154 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2022-11-22 02:44:48,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:44:48,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:44:48,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:44:48,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1364928803, now seen corresponding path program 1 times [2022-11-22 02:44:48,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:44:48,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592273438] [2022-11-22 02:44:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:44:48,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:44:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:44:51,836 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-22 02:44:51,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:44:51,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592273438] [2022-11-22 02:44:51,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592273438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:51,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:44:51,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:44:51,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334762245] [2022-11-22 02:44:51,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:51,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:44:51,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:51,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:44:51,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:44:51,842 INFO L87 Difference]: Start difference. First operand 8309 states and 12202 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 02:44:54,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:00,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:04,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:04,907 INFO L93 Difference]: Finished difference Result 8315 states and 12207 transitions. [2022-11-22 02:45:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:45:04,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 63 [2022-11-22 02:45:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:04,979 INFO L225 Difference]: With dead ends: 8315 [2022-11-22 02:45:04,979 INFO L226 Difference]: Without dead ends: 8153 [2022-11-22 02:45:04,986 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 [2022-11-22 02:45:04,988 INFO L413 NwaCegarLoop]: 6821 mSDtfsCounter, 4298 mSDsluCounter, 17032 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4299 SdHoareTripleChecker+Valid, 23853 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:04,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4299 Valid, 23853 Invalid, 1962 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1959 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-11-22 02:45:05,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8153 states. [2022-11-22 02:45:05,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8153 to 8153. [2022-11-22 02:45:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8153 states, 5104 states have (on average 1.3203369905956113) internal successors, (6739), 5349 states have internal predecessors, (6739), 2582 states have call successors, (2582), 465 states have call predecessors, (2582), 464 states have return successors, (2646), 2517 states have call predecessors, (2646), 2580 states have call successors, (2646) [2022-11-22 02:45:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8153 states to 8153 states and 11967 transitions. [2022-11-22 02:45:05,670 INFO L78 Accepts]: Start accepts. Automaton has 8153 states and 11967 transitions. Word has length 63 [2022-11-22 02:45:05,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:05,671 INFO L495 AbstractCegarLoop]: Abstraction has 8153 states and 11967 transitions. [2022-11-22 02:45:05,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 02:45:05,671 INFO L276 IsEmpty]: Start isEmpty. Operand 8153 states and 11967 transitions. [2022-11-22 02:45:05,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1659 [2022-11-22 02:45:05,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:05,792 INFO L195 NwaCegarLoop]: trace histogram [137, 137, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 47, 42, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:45:05,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:45:05,792 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:45:05,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:05,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1188283128, now seen corresponding path program 1 times [2022-11-22 02:45:05,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:05,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794857819] [2022-11-22 02:45:05,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:05,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 51749 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51749 trivial. 0 not checked. [2022-11-22 02:45:19,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:19,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794857819] [2022-11-22 02:45:19,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794857819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:19,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:19,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 02:45:19,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864927272] [2022-11-22 02:45:19,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:19,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:45:19,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:19,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:45:19,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:45:19,145 INFO L87 Difference]: Start difference. First operand 8153 states and 11967 transitions. Second operand has 8 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (190), 2 states have call predecessors, (190), 3 states have return successors, (180), 4 states have call predecessors, (180), 2 states have call successors, (180) [2022-11-22 02:45:21,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:32,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:36,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:36,795 INFO L93 Difference]: Finished difference Result 13775 states and 20247 transitions. [2022-11-22 02:45:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:45:36,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (190), 2 states have call predecessors, (190), 3 states have return successors, (180), 4 states have call predecessors, (180), 2 states have call successors, (180) Word has length 1658 [2022-11-22 02:45:36,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:36,860 INFO L225 Difference]: With dead ends: 13775 [2022-11-22 02:45:36,860 INFO L226 Difference]: Without dead ends: 8217 [2022-11-22 02:45:36,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:45:36,901 INFO L413 NwaCegarLoop]: 6665 mSDtfsCounter, 11 mSDsluCounter, 39964 mSDsCounter, 0 mSdLazyCounter, 3841 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 46629 SdHoareTripleChecker+Invalid, 3843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3841 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:36,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 46629 Invalid, 3843 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3841 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2022-11-22 02:45:36,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2022-11-22 02:45:37,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 8197. [2022-11-22 02:45:37,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8197 states, 5134 states have (on average 1.3192442539929878) internal successors, (6773), 5381 states have internal predecessors, (6773), 2586 states have call successors, (2586), 465 states have call predecessors, (2586), 474 states have return successors, (2666), 2529 states have call predecessors, (2666), 2584 states have call successors, (2666) [2022-11-22 02:45:37,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8197 states to 8197 states and 12025 transitions. [2022-11-22 02:45:37,480 INFO L78 Accepts]: Start accepts. Automaton has 8197 states and 12025 transitions. Word has length 1658 [2022-11-22 02:45:37,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:37,485 INFO L495 AbstractCegarLoop]: Abstraction has 8197 states and 12025 transitions. [2022-11-22 02:45:37,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (190), 2 states have call predecessors, (190), 3 states have return successors, (180), 4 states have call predecessors, (180), 2 states have call successors, (180) [2022-11-22 02:45:37,486 INFO L276 IsEmpty]: Start isEmpty. Operand 8197 states and 12025 transitions. [2022-11-22 02:45:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1676 [2022-11-22 02:45:37,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:37,620 INFO L195 NwaCegarLoop]: trace histogram [139, 139, 68, 67, 67, 67, 67, 67, 67, 67, 67, 67, 47, 42, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:45:37,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:45:37,621 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:45:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:37,622 INFO L85 PathProgramCache]: Analyzing trace with hash -128549508, now seen corresponding path program 1 times [2022-11-22 02:45:37,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:37,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400926526] [2022-11-22 02:45:37,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:37,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:38,542 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:45:38,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094620676] [2022-11-22 02:45:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:38,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:45:38,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:45:38,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:45:38,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:45:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:45,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 25739 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-22 02:45:45,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:45:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 52708 backedges. 506 proven. 0 refuted. 0 times theorem prover too weak. 52202 trivial. 0 not checked. [2022-11-22 02:45:46,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:45:46,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:46,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400926526] [2022-11-22 02:45:46,120 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:45:46,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094620676] [2022-11-22 02:45:46,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094620676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:46,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:46,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:45:46,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277473368] [2022-11-22 02:45:46,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:46,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:45:46,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:46,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:45:46,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:45:46,124 INFO L87 Difference]: Start difference. First operand 8197 states and 12025 transitions. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 5 states have internal predecessors, (265), 3 states have call successors, (194), 3 states have call predecessors, (194), 4 states have return successors, (184), 4 states have call predecessors, (184), 3 states have call successors, (184) [2022-11-22 02:45:48,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:56,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:46:01,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:46:01,206 INFO L93 Difference]: Finished difference Result 13859 states and 20351 transitions. [2022-11-22 02:46:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:46:01,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 5 states have internal predecessors, (265), 3 states have call successors, (194), 3 states have call predecessors, (194), 4 states have return successors, (184), 4 states have call predecessors, (184), 3 states have call successors, (184) Word has length 1675 [2022-11-22 02:46:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:46:01,250 INFO L225 Difference]: With dead ends: 13859 [2022-11-22 02:46:01,250 INFO L226 Difference]: Without dead ends: 8257 [2022-11-22 02:46:01,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1675 GetRequests, 1670 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:46:01,285 INFO L413 NwaCegarLoop]: 6657 mSDtfsCounter, 53 mSDsluCounter, 26580 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 33237 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2741 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:46:01,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 33237 Invalid, 2744 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2741 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-11-22 02:46:01,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8257 states. [2022-11-22 02:46:01,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8257 to 8215. [2022-11-22 02:46:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8215 states, 5146 states have (on average 1.3184998056743102) internal successors, (6785), 5395 states have internal predecessors, (6785), 2588 states have call successors, (2588), 465 states have call predecessors, (2588), 478 states have return successors, (2672), 2535 states have call predecessors, (2672), 2586 states have call successors, (2672) [2022-11-22 02:46:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8215 states to 8215 states and 12045 transitions. [2022-11-22 02:46:02,029 INFO L78 Accepts]: Start accepts. Automaton has 8215 states and 12045 transitions. Word has length 1675 [2022-11-22 02:46:02,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:46:02,032 INFO L495 AbstractCegarLoop]: Abstraction has 8215 states and 12045 transitions. [2022-11-22 02:46:02,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 5 states have internal predecessors, (265), 3 states have call successors, (194), 3 states have call predecessors, (194), 4 states have return successors, (184), 4 states have call predecessors, (184), 3 states have call successors, (184) [2022-11-22 02:46:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 8215 states and 12045 transitions. [2022-11-22 02:46:02,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2022-11-22 02:46:02,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:46:02,081 INFO L195 NwaCegarLoop]: trace histogram [141, 141, 69, 68, 68, 68, 68, 68, 68, 68, 68, 68, 47, 42, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:46:02,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:46:02,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 02:46:02,295 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:46:02,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:46:02,296 INFO L85 PathProgramCache]: Analyzing trace with hash -93953974, now seen corresponding path program 1 times [2022-11-22 02:46:02,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:46:02,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840651439] [2022-11-22 02:46:02,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:46:02,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:46:03,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:46:03,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053098213] [2022-11-22 02:46:03,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:46:03,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:46:03,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:46:03,107 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:46:03,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:47:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:47:01,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 25843 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 02:47:02,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:47:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 54150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54150 trivial. 0 not checked. [2022-11-22 02:47:02,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:47:02,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:47:02,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840651439] [2022-11-22 02:47:02,155 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:47:02,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053098213] [2022-11-22 02:47:02,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053098213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:47:02,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:47:02,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:47:02,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529414350] [2022-11-22 02:47:02,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:47:02,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:47:02,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:47:02,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:47:02,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:47:02,160 INFO L87 Difference]: Start difference. First operand 8215 states and 12045 transitions. Second operand has 5 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 2 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (186), 1 states have call predecessors, (186), 2 states have call successors, (186) [2022-11-22 02:47:04,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:47:06,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:47:08,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:47:14,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:47:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:47:17,826 INFO L93 Difference]: Finished difference Result 16422 states and 24081 transitions. [2022-11-22 02:47:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:47:17,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 2 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (186), 1 states have call predecessors, (186), 2 states have call successors, (186) Word has length 1696 [2022-11-22 02:47:17,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:47:17,868 INFO L225 Difference]: With dead ends: 16422 [2022-11-22 02:47:17,868 INFO L226 Difference]: Without dead ends: 8216 [2022-11-22 02:47:17,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1696 GetRequests, 1692 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:47:17,902 INFO L413 NwaCegarLoop]: 6654 mSDtfsCounter, 39 mSDsluCounter, 13238 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 19892 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:47:17,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 19892 Invalid, 1733 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1730 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2022-11-22 02:47:17,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8216 states. [2022-11-22 02:47:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8216 to 8216. [2022-11-22 02:47:18,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8216 states, 5147 states have (on average 1.3184379250048572) internal successors, (6786), 5396 states have internal predecessors, (6786), 2588 states have call successors, (2588), 465 states have call predecessors, (2588), 478 states have return successors, (2672), 2535 states have call predecessors, (2672), 2586 states have call successors, (2672) [2022-11-22 02:47:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8216 states to 8216 states and 12046 transitions. [2022-11-22 02:47:18,559 INFO L78 Accepts]: Start accepts. Automaton has 8216 states and 12046 transitions. Word has length 1696 [2022-11-22 02:47:18,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:47:18,559 INFO L495 AbstractCegarLoop]: Abstraction has 8216 states and 12046 transitions. [2022-11-22 02:47:18,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 2 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (186), 1 states have call predecessors, (186), 2 states have call successors, (186) [2022-11-22 02:47:18,560 INFO L276 IsEmpty]: Start isEmpty. Operand 8216 states and 12046 transitions. [2022-11-22 02:47:18,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1698 [2022-11-22 02:47:18,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:47:18,606 INFO L195 NwaCegarLoop]: trace histogram [141, 141, 69, 68, 68, 68, 68, 68, 68, 68, 68, 68, 47, 42, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:47:18,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:47:18,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:47:18,823 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [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 (and 1 more)] === [2022-11-22 02:47:18,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:47:18,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1490701210, now seen corresponding path program 1 times [2022-11-22 02:47:18,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:47:18,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563350803] [2022-11-22 02:47:18,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:47:18,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:47:19,633 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:47:19,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342757911] [2022-11-22 02:47:19,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:47:19,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:47:19,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:47:19,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:47:19,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a214a9ff-3ebe-40c9-84f9-5b7aa6c9e8a2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process