./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7 --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 d88980e24377daa45068c6e4fe090f3a4be139e16663cf138c162fc55d6daf92 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:07:06,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:07:06,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:07:06,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:07:06,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:07:06,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:07:06,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:07:06,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:07:06,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:07:06,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:07:06,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:07:06,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:07:06,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:07:06,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:07:06,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:07:06,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:07:06,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:07:06,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:07:06,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:07:06,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:07:06,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:07:06,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:07:06,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:07:06,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:07:06,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:07:06,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:07:06,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:07:06,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:07:06,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:07:06,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:07:06,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:07:06,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:07:06,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:07:06,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:07:06,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:07:06,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:07:06,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:07:06,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:07:06,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:07:06,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:07:06,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:07:06,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:07:06,426 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:07:06,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:07:06,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:07:06,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:07:06,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:07:06,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:07:06,435 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:07:06,435 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:07:06,435 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:07:06,436 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:07:06,437 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:07:06,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:07:06,437 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:07:06,438 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:07:06,438 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:07:06,438 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:07:06,438 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:07:06,439 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:07:06,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:07:06,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:07:06,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:07:06,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:07:06,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:07:06,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:07:06,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:07:06,442 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:07:06,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:07:06,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:07:06,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:07:06,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:07:06,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:07:06,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:07:06,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:07:06,444 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:07:06,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:07:06,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:07:06,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:07:06,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:07:06,445 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88980e24377daa45068c6e4fe090f3a4be139e16663cf138c162fc55d6daf92 [2021-11-25 19:07:06,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:07:06,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:07:06,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:07:06,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:07:06,705 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:07:06,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-25 19:07:06,772 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/data/b76451124/079ff90a84f8403cb944509c6cf52abc/FLAG39661b8d5 [2021-11-25 19:07:08,007 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:07:08,007 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-25 19:07:08,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/data/b76451124/079ff90a84f8403cb944509c6cf52abc/FLAG39661b8d5 [2021-11-25 19:07:08,585 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/data/b76451124/079ff90a84f8403cb944509c6cf52abc [2021-11-25 19:07:08,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:07:08,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:07:08,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:07:08,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:07:08,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:07:08,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:07:08" (1/1) ... [2021-11-25 19:07:08,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20890abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:08, skipping insertion in model container [2021-11-25 19:07:08,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:07:08" (1/1) ... [2021-11-25 19:07:08,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:07:08,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:07:16,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[887303,887316] [2021-11-25 19:07:16,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[887469,887482] [2021-11-25 19:07:16,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[887633,887646] [2021-11-25 19:07:16,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[887798,887811] [2021-11-25 19:07:17,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:07:17,264 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:07:18,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[887303,887316] [2021-11-25 19:07:18,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[887469,887482] [2021-11-25 19:07:18,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[887633,887646] [2021-11-25 19:07:18,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[887798,887811] [2021-11-25 19:07:18,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:07:18,567 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:07:18,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18 WrapperNode [2021-11-25 19:07:18,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:07:18,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:07:18,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:07:18,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:07:18,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:18,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:19,714 INFO L137 Inliner]: procedures = 583, calls = 10780, calls flagged for inlining = 348, calls inlined = 336, statements flattened = 25782 [2021-11-25 19:07:19,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:07:19,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:07:19,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:07:19,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:07:19,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:19,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:19,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:19,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:20,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:20,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:20,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:21,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:07:21,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:07:21,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:07:21,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:07:21,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (1/1) ... [2021-11-25 19:07:21,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:07:21,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:07:21,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:07:21,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7e4023-1db2-49ca-bb58-7f690d669b41/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:07:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_check_bssid [2021-11-25 19:07:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_check_bssid [2021-11-25 19:07:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_rf_reg [2021-11-25 19:07:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_rf_reg [2021-11-25 19:07:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_on [2021-11-25 19:07:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_on [2021-11-25 19:07:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-25 19:07:21,286 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-25 19:07:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:07:21,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:07:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_lc_calibrate [2021-11-25 19:07:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_lc_calibrate [2021-11-25 19:07:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8188e_config_bb_reg [2021-11-25 19:07:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8188e_config_bb_reg [2021-11-25 19:07:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-11-25 19:07:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-11-25 19:07:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_enter [2021-11-25 19:07:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_enter [2021-11-25 19:07:21,289 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_path_adda_on [2021-11-25 19:07:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_path_adda_on [2021-11-25 19:07:21,289 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2021-11-25 19:07:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2021-11-25 19:07:21,289 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-11-25 19:07:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-11-25 19:07:21,290 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:07:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:07:21,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 19:07:21,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 19:07:21,291 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 19:07:21,291 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 19:07:21,291 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_bb_reg [2021-11-25 19:07:21,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_bb_reg [2021-11-25 19:07:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_suspend [2021-11-25 19:07:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_suspend [2021-11-25 19:07:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_interrupt [2021-11-25 19:07:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_interrupt [2021-11-25 19:07:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_off [2021-11-25 19:07:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_off [2021-11-25 19:07:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 19:07:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-11-25 19:07:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-11-25 19:07:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:07:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:07:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2021-11-25 19:07:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2021-11-25 19:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_config_rf_with_headerfile [2021-11-25 19:07:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_config_rf_with_headerfile [2021-11-25 19:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_firmware_selfreset [2021-11-25 19:07:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_firmware_selfreset [2021-11-25 19:07:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:07:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:07:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 19:07:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 19:07:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 19:07:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 19:07:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_desc [2021-11-25 19:07:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_desc [2021-11-25 19:07:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_interval [2021-11-25 19:07:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_interval [2021-11-25 19:07:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_disable_interrupt [2021-11-25 19:07:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_disable_interrupt [2021-11-25 19:07:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:07:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_resume [2021-11-25 19:07:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_resume [2021-11-25 19:07:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-25 19:07:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-25 19:07:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_channel_access_setting [2021-11-25 19:07:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_channel_access_setting [2021-11-25 19:07:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_rx_idle_ant [2021-11-25 19:07:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_rx_idle_ant [2021-11-25 19:07:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2021-11-25 19:07:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2021-11-25 19:07:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 19:07:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 19:07:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-25 19:07:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-25 19:07:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:07:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2021-11-25 19:07:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2021-11-25 19:07:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:07:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:07:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2021-11-25 19:07:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2021-11-25 19:07:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:07:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:07:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:07:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure rf_serial_read [2021-11-25 19:07:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_serial_read [2021-11-25 19:07:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:07:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_interrupt_mask [2021-11-25 19:07:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_interrupt_mask [2021-11-25 19:07:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 19:07:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 19:07:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:07:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:07:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rf_reg [2021-11-25 19:07:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rf_reg [2021-11-25 19:07:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 19:07:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 19:07:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-25 19:07:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-25 19:07:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-11-25 19:07:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-11-25 19:07:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_card_disable [2021-11-25 19:07:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_card_disable [2021-11-25 19:07:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_check_fw_read_last_h2c [2021-11-25 19:07:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_check_fw_read_last_h2c [2021-11-25 19:07:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2021-11-25 19:07:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2021-11-25 19:07:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-25 19:07:21,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-25 19:07:21,313 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_led_control [2021-11-25 19:07:21,314 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_led_control [2021-11-25 19:07:21,314 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_related_registers [2021-11-25 19:07:21,314 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_related_registers [2021-11-25 19:07:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure save_adda_reg [2021-11-25 19:07:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure save_adda_reg [2021-11-25 19:07:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-25 19:07:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-25 19:07:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-25 19:07:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-25 19:07:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:07:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 19:07:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 19:07:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-25 19:07:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-25 19:07:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 19:07:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 19:07:21,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-25 19:07:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-25 19:07:21,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 19:07:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 19:07:21,322 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_hw_reg [2021-11-25 19:07:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_hw_reg [2021-11-25 19:07:21,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:07:21,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:07:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:07:21,323 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 19:07:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 19:07:21,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:07:21,324 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:07:21,324 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rfpath_switch [2021-11-25 19:07:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rfpath_switch [2021-11-25 19:07:21,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:07:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:07:21,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:07:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:07:21,325 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_hal_rate_tbl [2021-11-25 19:07:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_hal_rate_tbl [2021-11-25 19:07:21,325 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_txpower_level [2021-11-25 19:07:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_txpower_level [2021-11-25 19:07:21,325 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 19:07:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 19:07:21,325 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bb_reg [2021-11-25 19:07:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bb_reg [2021-11-25 19:07:21,326 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_qos [2021-11-25 19:07:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_qos [2021-11-25 19:07:21,326 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_iq_calibrate [2021-11-25 19:07:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_iq_calibrate [2021-11-25 19:07:21,326 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2021-11-25 19:07:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2021-11-25 19:07:21,326 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_check_txpower_tracking [2021-11-25 19:07:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_check_txpower_tracking [2021-11-25 19:07:21,327 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_led [2021-11-25 19:07:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_led [2021-11-25 19:07:21,327 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_txpower_track_adjust [2021-11-25 19:07:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_txpower_track_adjust [2021-11-25 19:07:21,327 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_poweroff_adapter [2021-11-25 19:07:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_poweroff_adapter [2021-11-25 19:07:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_init_edca_turbo [2021-11-25 19:07:21,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_init_edca_turbo [2021-11-25 19:07:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_bcn_ctrl_reg [2021-11-25 19:07:21,328 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_bcn_ctrl_reg [2021-11-25 19:07:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_sw_leds [2021-11-25 19:07:21,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_sw_leds [2021-11-25 19:07:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:07:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:07:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-25 19:07:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-25 19:07:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_hal_pwrseqcmdparsing [2021-11-25 19:07:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_hal_pwrseqcmdparsing [2021-11-25 19:07:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_hw_security_config [2021-11-25 19:07:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_hw_security_config [2021-11-25 19:07:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:07:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:07:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:07:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:07:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2021-11-25 19:07:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2021-11-25 19:07:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2021-11-25 19:07:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2021-11-25 19:07:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 19:07:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 19:07:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-25 19:07:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-25 19:07:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 19:07:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 19:07:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_set_iqk_matrix [2021-11-25 19:07:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_set_iqk_matrix [2021-11-25 19:07:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_chk_tx_track [2021-11-25 19:07:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_chk_tx_track [2021-11-25 19:07:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-11-25 19:07:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-11-25 19:07:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_stop_tx_beacon [2021-11-25 19:07:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_stop_tx_beacon [2021-11-25 19:07:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-11-25 19:07:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-11-25 19:07:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-11-25 19:07:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-11-25 19:07:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 19:07:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 19:07:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_llt_write [2021-11-25 19:07:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_llt_write [2021-11-25 19:07:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:07:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:07:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2021-11-25 19:07:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2021-11-25 19:07:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_watchdog [2021-11-25 19:07:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_watchdog [2021-11-25 19:07:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 19:07:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 19:07:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bw_mode [2021-11-25 19:07:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bw_mode [2021-11-25 19:07:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_ant_training [2021-11-25 19:07:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_ant_training [2021-11-25 19:07:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure sim_comp [2021-11-25 19:07:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure sim_comp [2021-11-25 19:07:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_deinit_sw_vars [2021-11-25 19:07:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_deinit_sw_vars [2021-11-25 19:07:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_polling [2021-11-25 19:07:21,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_polling [2021-11-25 19:07:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:07:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:07:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_pi_mode_switch [2021-11-25 19:07:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_pi_mode_switch [2021-11-25 19:07:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure cal_bit_shift [2021-11-25 19:07:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_bit_shift [2021-11-25 19:07:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_enable_fw_download [2021-11-25 19:07:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_enable_fw_download [2021-11-25 19:07:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2021-11-25 19:07:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2021-11-25 19:07:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-25 19:07:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-25 19:07:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:07:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 19:07:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 19:07:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-25 19:07:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-25 19:07:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 19:07:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 19:07:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_on [2021-11-25 19:07:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_on [2021-11-25 19:07:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 19:07:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 19:07:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:07:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:07:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_hw_init [2021-11-25 19:07:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_hw_init [2021-11-25 19:07:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure check_cond [2021-11-25 19:07:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure check_cond [2021-11-25 19:07:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2021-11-25 19:07:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2021-11-25 19:07:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_initial_gain_min_pwdb [2021-11-25 19:07:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_initial_gain_min_pwdb [2021-11-25 19:07:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_iq_calibrate [2021-11-25 19:07:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_iq_calibrate [2021-11-25 19:07:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-25 19:07:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-25 19:07:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2021-11-25 19:07:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2021-11-25 19:07:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-25 19:07:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-25 19:07:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_hw_reg [2021-11-25 19:07:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_hw_reg [2021-11-25 19:07:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2021-11-25 19:07:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2021-11-25 19:07:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 19:07:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 19:07:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-25 19:07:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-25 19:07:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_fill_h2c_cmd [2021-11-25 19:07:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_fill_h2c_cmd [2021-11-25 19:07:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_fw_page_write [2021-11-25 19:07:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_fw_page_write [2021-11-25 19:07:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2021-11-25 19:07:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2021-11-25 19:07:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_tx_ant [2021-11-25 19:07:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_tx_ant [2021-11-25 19:07:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:07:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure reload_adda [2021-11-25 19:07:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure reload_adda [2021-11-25 19:07:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:07:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:07:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2021-11-25 19:07:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2021-11-25 19:07:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_read_eeprom_info [2021-11-25 19:07:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_read_eeprom_info [2021-11-25 19:07:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_off [2021-11-25 19:07:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_off [2021-11-25 19:07:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2021-11-25 19:07:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2021-11-25 19:07:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-25 19:07:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-25 19:07:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_resume_tx_beacon [2021-11-25 19:07:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_resume_tx_beacon [2021-11-25 19:07:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_init_sw_vars [2021-11-25 19:07:21,354 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_init_sw_vars [2021-11-25 19:07:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-25 19:07:21,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-25 19:07:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_config_s [2021-11-25 19:07:21,354 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_config_s [2021-11-25 19:07:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-25 19:07:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-25 19:07:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-25 19:07:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-25 19:07:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:07:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:07:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure config_bb_with_header [2021-11-25 19:07:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure config_bb_with_header [2021-11-25 19:07:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 19:07:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 19:07:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-11-25 19:07:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-11-25 19:07:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_media_status [2021-11-25 19:07:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_media_status [2021-11-25 19:07:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_leave [2021-11-25 19:07:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_leave [2021-11-25 19:07:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 19:07:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 19:07:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 19:07:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 19:07:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_fill_cmddesc [2021-11-25 19:07:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_fill_cmddesc [2021-11-25 19:07:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:07:21,358 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2021-11-25 19:07:21,358 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2021-11-25 19:07:21,358 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-11-25 19:07:21,358 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-11-25 19:07:21,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 19:07:21,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 19:07:21,358 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_on [2021-11-25 19:07:21,359 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_on [2021-11-25 19:07:21,359 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-25 19:07:21,359 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-25 19:07:23,270 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:07:23,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:07:26,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:09:21,056 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 19:09:21,424 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:09:30,372 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:09:30,372 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-25 19:09:30,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:09:30 BoogieIcfgContainer [2021-11-25 19:09:30,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:09:30,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:09:30,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:09:30,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:09:30,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:07:08" (1/3) ... [2021-11-25 19:09:30,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d326da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:09:30, skipping insertion in model container [2021-11-25 19:09:30,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:18" (2/3) ... [2021-11-25 19:09:30,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d326da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:09:30, skipping insertion in model container [2021-11-25 19:09:30,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:09:30" (3/3) ... [2021-11-25 19:09:30,390 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-25 19:09:30,396 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:09:30,396 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:09:30,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:09:30,479 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:09:30,479 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:09:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 6049 states, 3690 states have (on average 1.3715447154471545) internal successors, (5061), 3853 states have internal predecessors, (5061), 2204 states have call successors, (2204), 163 states have call predecessors, (2204), 162 states have return successors, (2194), 2125 states have call predecessors, (2194), 2194 states have call successors, (2194) [2021-11-25 19:09:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-25 19:09:30,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:09:30,655 INFO L514 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 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] [2021-11-25 19:09:30,655 INFO L402 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] === [2021-11-25 19:09:30,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:09:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1305901997, now seen corresponding path program 1 times [2021-11-25 19:09:30,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:09:30,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258554906] [2021-11-25 19:09:30,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:09:30,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:09:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:09:32,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2021-11-25 19:09:32,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:09:32,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258554906] [2021-11-25 19:09:32,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258554906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:09:32,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:09:32,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:09:32,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398931597] [2021-11-25 19:09:32,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:09:32,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:09:32,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:09:32,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:09:32,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:09:32,393 INFO L87 Difference]: Start difference. First operand has 6049 states, 3690 states have (on average 1.3715447154471545) internal successors, (5061), 3853 states have internal predecessors, (5061), 2204 states have call successors, (2204), 163 states have call predecessors, (2204), 162 states have return successors, (2194), 2125 states have call predecessors, (2194), 2194 states have call successors, (2194) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-25 19:09:35,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:38,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:40,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:43,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:47,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:51,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:53,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:54,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:56,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:58,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:59,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:00,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:10:00,503 INFO L93 Difference]: Finished difference Result 11429 states and 17648 transitions. [2021-11-25 19:10:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:10:00,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 295 [2021-11-25 19:10:00,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:10:00,579 INFO L225 Difference]: With dead ends: 11429 [2021-11-25 19:10:00,579 INFO L226 Difference]: Without dead ends: 6674 [2021-11-25 19:10:00,615 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:10:00,618 INFO L933 BasicCegarLoop]: 6611 mSDtfsCounter, 5587 mSDsluCounter, 5925 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 21 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5593 SdHoareTripleChecker+Valid, 11978 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:10:00,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5593 Valid, 11978 Invalid, 1199 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 1171 Invalid, 7 Unknown, 0 Unchecked, 27.6s Time] [2021-11-25 19:10:00,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2021-11-25 19:10:01,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 6669. [2021-11-25 19:10:01,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6669 states, 4256 states have (on average 1.3564379699248121) internal successors, (5773), 4387 states have internal predecessors, (5773), 2179 states have call successors, (2179), 234 states have call predecessors, (2179), 233 states have return successors, (2179), 2110 states have call predecessors, (2179), 2175 states have call successors, (2179) [2021-11-25 19:10:01,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6669 states to 6669 states and 10131 transitions. [2021-11-25 19:10:01,594 INFO L78 Accepts]: Start accepts. Automaton has 6669 states and 10131 transitions. Word has length 295 [2021-11-25 19:10:01,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:10:01,598 INFO L470 AbstractCegarLoop]: Abstraction has 6669 states and 10131 transitions. [2021-11-25 19:10:01,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-25 19:10:01,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6669 states and 10131 transitions. [2021-11-25 19:10:01,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-25 19:10:01,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:10:01,630 INFO L514 BasicCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:10:01,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:10:01,630 INFO L402 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] === [2021-11-25 19:10:01,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:10:01,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1629768974, now seen corresponding path program 1 times [2021-11-25 19:10:01,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:10:01,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083411502] [2021-11-25 19:10:01,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:10:01,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:10:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:10:03,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3070 trivial. 0 not checked. [2021-11-25 19:10:03,107 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:10:03,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083411502] [2021-11-25 19:10:03,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083411502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:10:03,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:10:03,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:10:03,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899350828] [2021-11-25 19:10:03,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:10:03,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:10:03,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:10:03,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:10:03,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:10:03,110 INFO L87 Difference]: Start difference. First operand 6669 states and 10131 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-25 19:10:06,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:10,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:12,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:14,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:18,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:19,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:24,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:27,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:30,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:33,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:36,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:38,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:40,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:43,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:45,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:45,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:10:45,794 INFO L93 Difference]: Finished difference Result 10022 states and 15211 transitions. [2021-11-25 19:10:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:10:45,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 338 [2021-11-25 19:10:45,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:10:45,881 INFO L225 Difference]: With dead ends: 10022 [2021-11-25 19:10:45,881 INFO L226 Difference]: Without dead ends: 10020 [2021-11-25 19:10:45,888 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:10:45,890 INFO L933 BasicCegarLoop]: 5810 mSDtfsCounter, 5066 mSDsluCounter, 17816 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5072 SdHoareTripleChecker+Valid, 22064 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:10:45,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5072 Valid, 22064 Invalid, 2100 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2088 Invalid, 10 Unknown, 0 Unchecked, 42.2s Time] [2021-11-25 19:10:45,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10020 states. [2021-11-25 19:10:46,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10020 to 10014. [2021-11-25 19:10:46,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10014 states, 6389 states have (on average 1.3570198779151668) internal successors, (8670), 6588 states have internal predecessors, (8670), 3268 states have call successors, (3268), 358 states have call predecessors, (3268), 356 states have return successors, (3266), 3162 states have call predecessors, (3266), 3260 states have call successors, (3266) [2021-11-25 19:10:46,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10014 states to 10014 states and 15204 transitions. [2021-11-25 19:10:46,903 INFO L78 Accepts]: Start accepts. Automaton has 10014 states and 15204 transitions. Word has length 338 [2021-11-25 19:10:46,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:10:46,908 INFO L470 AbstractCegarLoop]: Abstraction has 10014 states and 15204 transitions. [2021-11-25 19:10:46,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-25 19:10:46,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10014 states and 15204 transitions. [2021-11-25 19:10:46,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-11-25 19:10:46,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:10:46,928 INFO L514 BasicCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:10:46,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:10:46,928 INFO L402 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] === [2021-11-25 19:10:46,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:10:46,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1368105839, now seen corresponding path program 1 times [2021-11-25 19:10:46,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:10:46,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140656710] [2021-11-25 19:10:46,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:10:46,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:10:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:10:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3067 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3065 trivial. 0 not checked. [2021-11-25 19:10:48,141 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:10:48,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140656710] [2021-11-25 19:10:48,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140656710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:10:48,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:10:48,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:10:48,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969438319] [2021-11-25 19:10:48,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:10:48,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:10:48,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:10:48,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:10:48,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:10:48,143 INFO L87 Difference]: Start difference. First operand 10014 states and 15204 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-25 19:10:51,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:55,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:57,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:00,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:03,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:07,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:08,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:11,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:12,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:14,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:17,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:19,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:20,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:11:20,905 INFO L93 Difference]: Finished difference Result 16372 states and 24865 transitions. [2021-11-25 19:11:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:11:20,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 342 [2021-11-25 19:11:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:11:21,028 INFO L225 Difference]: With dead ends: 16372 [2021-11-25 19:11:21,029 INFO L226 Difference]: Without dead ends: 16368 [2021-11-25 19:11:21,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:11:21,043 INFO L933 BasicCegarLoop]: 5970 mSDtfsCounter, 4855 mSDsluCounter, 18158 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 22530 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:11:21,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4862 Valid, 22530 Invalid, 2165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2155 Invalid, 9 Unknown, 0 Unchecked, 32.2s Time] [2021-11-25 19:11:21,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16368 states. [2021-11-25 19:11:22,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16368 to 16359. [2021-11-25 19:11:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16359 states, 10442 states have (on average 1.3580731660601417) internal successors, (14181), 10773 states have internal predecessors, (14181), 5335 states have call successors, (5335), 585 states have call predecessors, (5335), 581 states have return successors, (5337), 5157 states have call predecessors, (5337), 5323 states have call successors, (5337) [2021-11-25 19:11:22,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16359 states to 16359 states and 24853 transitions. [2021-11-25 19:11:22,647 INFO L78 Accepts]: Start accepts. Automaton has 16359 states and 24853 transitions. Word has length 342 [2021-11-25 19:11:22,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:11:22,648 INFO L470 AbstractCegarLoop]: Abstraction has 16359 states and 24853 transitions. [2021-11-25 19:11:22,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-25 19:11:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 16359 states and 24853 transitions. [2021-11-25 19:11:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-11-25 19:11:22,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:11:22,669 INFO L514 BasicCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:11:22,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:11:22,669 INFO L402 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] === [2021-11-25 19:11:22,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:11:22,670 INFO L85 PathProgramCache]: Analyzing trace with hash 439054510, now seen corresponding path program 1 times [2021-11-25 19:11:22,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:11:22,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344145558] [2021-11-25 19:11:22,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:11:22,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:11:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:11:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3078 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3074 trivial. 0 not checked. [2021-11-25 19:11:23,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:11:23,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344145558] [2021-11-25 19:11:23,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344145558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:11:23,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:11:23,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:11:23,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909195286] [2021-11-25 19:11:23,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:11:23,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:11:23,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:11:23,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:11:23,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:11:23,730 INFO L87 Difference]: Start difference. First operand 16359 states and 24853 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-25 19:11:26,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:30,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:32,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:36,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:38,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:40,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:43,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:46,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:49,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:51,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:53,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:57,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:58,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:11:58,780 INFO L93 Difference]: Finished difference Result 19647 states and 29840 transitions. [2021-11-25 19:11:58,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:11:58,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 348 [2021-11-25 19:11:58,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:11:58,890 INFO L225 Difference]: With dead ends: 19647 [2021-11-25 19:11:58,890 INFO L226 Difference]: Without dead ends: 19613 [2021-11-25 19:11:58,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:11:58,908 INFO L933 BasicCegarLoop]: 5994 mSDtfsCounter, 4960 mSDsluCounter, 18211 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4966 SdHoareTripleChecker+Valid, 22602 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:11:58,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4966 Valid, 22602 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2159 Invalid, 8 Unknown, 0 Unchecked, 34.6s Time] [2021-11-25 19:11:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19613 states. [2021-11-25 19:12:00,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19613 to 19606. [2021-11-25 19:12:00,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19606 states, 12517 states have (on average 1.358152912039626) internal successors, (17000), 12913 states have internal predecessors, (17000), 6393 states have call successors, (6393), 699 states have call predecessors, (6393), 695 states have return successors, (6399), 6181 states have call predecessors, (6399), 6381 states have call successors, (6399) [2021-11-25 19:12:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19606 states to 19606 states and 29792 transitions. [2021-11-25 19:12:00,669 INFO L78 Accepts]: Start accepts. Automaton has 19606 states and 29792 transitions. Word has length 348 [2021-11-25 19:12:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:12:00,670 INFO L470 AbstractCegarLoop]: Abstraction has 19606 states and 29792 transitions. [2021-11-25 19:12:00,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-25 19:12:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 19606 states and 29792 transitions. [2021-11-25 19:12:00,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-11-25 19:12:00,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:12:00,704 INFO L514 BasicCegarLoop]: trace histogram [29, 27, 27, 27, 27, 27, 27, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:12:00,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:12:00,704 INFO L402 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] === [2021-11-25 19:12:00,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:12:00,705 INFO L85 PathProgramCache]: Analyzing trace with hash -6618789, now seen corresponding path program 1 times [2021-11-25 19:12:00,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:12:00,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627777903] [2021-11-25 19:12:00,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:12:00,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:12:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:12:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2932 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2927 trivial. 0 not checked. [2021-11-25 19:12:01,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:12:01,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627777903] [2021-11-25 19:12:01,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627777903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:12:01,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:12:01,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:12:01,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591800742] [2021-11-25 19:12:01,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:12:01,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:12:01,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:12:01,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:12:01,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:12:01,847 INFO L87 Difference]: Start difference. First operand 19606 states and 29792 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-25 19:12:04,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:08,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:10,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:13,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:17,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:19,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:22,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:23,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:26,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:27,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:12:27,947 INFO L93 Difference]: Finished difference Result 43637 states and 66166 transitions. [2021-11-25 19:12:27,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:12:27,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 365 [2021-11-25 19:12:27,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:12:28,070 INFO L225 Difference]: With dead ends: 43637 [2021-11-25 19:12:28,071 INFO L226 Difference]: Without dead ends: 24086 [2021-11-25 19:12:28,174 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:12:28,176 INFO L933 BasicCegarLoop]: 5508 mSDtfsCounter, 3241 mSDsluCounter, 5091 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 15 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3243 SdHoareTripleChecker+Valid, 10120 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:12:28,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3243 Valid, 10120 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1171 Invalid, 7 Unknown, 0 Unchecked, 25.6s Time] [2021-11-25 19:12:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24086 states. [2021-11-25 19:12:29,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24086 to 24039. [2021-11-25 19:12:30,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24039 states, 15247 states have (on average 1.3508231127434904) internal successors, (20596), 15763 states have internal predecessors, (20596), 7870 states have call successors, (7870), 925 states have call predecessors, (7870), 921 states have return successors, (7876), 7593 states have call predecessors, (7876), 7858 states have call successors, (7876) [2021-11-25 19:12:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24039 states to 24039 states and 36342 transitions. [2021-11-25 19:12:30,147 INFO L78 Accepts]: Start accepts. Automaton has 24039 states and 36342 transitions. Word has length 365 [2021-11-25 19:12:30,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:12:30,149 INFO L470 AbstractCegarLoop]: Abstraction has 24039 states and 36342 transitions. [2021-11-25 19:12:30,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-25 19:12:30,149 INFO L276 IsEmpty]: Start isEmpty. Operand 24039 states and 36342 transitions. [2021-11-25 19:12:30,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-11-25 19:12:30,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:12:30,200 INFO L514 BasicCegarLoop]: trace histogram [33, 27, 27, 27, 27, 27, 27, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:12:30,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:12:30,201 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:12:30,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:12:30,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2005706053, now seen corresponding path program 1 times [2021-11-25 19:12:30,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:12:30,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710400258] [2021-11-25 19:12:30,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:12:30,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:12:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:12:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3276 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3254 trivial. 0 not checked. [2021-11-25 19:12:31,392 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:12:31,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710400258] [2021-11-25 19:12:31,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710400258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:12:31,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:12:31,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:12:31,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143870303] [2021-11-25 19:12:31,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:12:31,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:12:31,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:12:31,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:12:31,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:12:31,396 INFO L87 Difference]: Start difference. First operand 24039 states and 36342 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 19:12:34,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:36,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:40,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:42,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:43,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:46,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:48,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:50,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:52,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:55,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:57,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:59,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:59,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:12:59,691 INFO L93 Difference]: Finished difference Result 54580 states and 82486 transitions. [2021-11-25 19:12:59,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:12:59,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 427 [2021-11-25 19:12:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:12:59,860 INFO L225 Difference]: With dead ends: 54580 [2021-11-25 19:12:59,860 INFO L226 Difference]: Without dead ends: 32725 [2021-11-25 19:12:59,920 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:12:59,920 INFO L933 BasicCegarLoop]: 7644 mSDtfsCounter, 3239 mSDsluCounter, 5089 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3242 SdHoareTripleChecker+Valid, 12254 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:12:59,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3242 Valid, 12254 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1470 Invalid, 7 Unknown, 0 Unchecked, 27.5s Time] [2021-11-25 19:12:59,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32725 states. [2021-11-25 19:13:01,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32725 to 32678. [2021-11-25 19:13:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32678 states, 20681 states have (on average 1.348629176538852) internal successors, (27891), 21398 states have internal predecessors, (27891), 10716 states have call successors, (10716), 1284 states have call predecessors, (10716), 1280 states have return successors, (10730), 10330 states have call predecessors, (10730), 10704 states have call successors, (10730) [2021-11-25 19:13:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32678 states to 32678 states and 49337 transitions. [2021-11-25 19:13:02,066 INFO L78 Accepts]: Start accepts. Automaton has 32678 states and 49337 transitions. Word has length 427 [2021-11-25 19:13:02,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:02,080 INFO L470 AbstractCegarLoop]: Abstraction has 32678 states and 49337 transitions. [2021-11-25 19:13:02,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 19:13:02,080 INFO L276 IsEmpty]: Start isEmpty. Operand 32678 states and 49337 transitions. [2021-11-25 19:13:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-11-25 19:13:02,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:02,163 INFO L514 BasicCegarLoop]: trace histogram [35, 27, 27, 27, 27, 27, 27, 8, 8, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:13:02,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:13:02,164 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:13:02,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:02,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1193864227, now seen corresponding path program 1 times [2021-11-25 19:13:02,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:02,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5667447] [2021-11-25 19:13:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:02,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3436 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3395 trivial. 0 not checked. [2021-11-25 19:13:03,308 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:03,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5667447] [2021-11-25 19:13:03,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5667447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:03,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:03,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:03,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714902951] [2021-11-25 19:13:03,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:03,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:03,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:03,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:03,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:03,317 INFO L87 Difference]: Start difference. First operand 32678 states and 49337 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-25 19:13:06,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:12,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:14,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:17,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:20,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:23,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:29,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:31,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:33,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:35,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:39,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:43,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:46,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:46,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:46,525 INFO L93 Difference]: Finished difference Result 79000 states and 119158 transitions. [2021-11-25 19:13:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:13:46,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 450 [2021-11-25 19:13:46,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:46,814 INFO L225 Difference]: With dead ends: 79000 [2021-11-25 19:13:46,814 INFO L226 Difference]: Without dead ends: 48506 [2021-11-25 19:13:46,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:46,911 INFO L933 BasicCegarLoop]: 9705 mSDtfsCounter, 5939 mSDsluCounter, 11964 mSDsCounter, 0 mSdLazyCounter, 4004 mSolverCounterSat, 6 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5943 SdHoareTripleChecker+Valid, 20397 SdHoareTripleChecker+Invalid, 4021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4004 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:46,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5943 Valid, 20397 Invalid, 4021 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 4004 Invalid, 11 Unknown, 0 Unchecked, 41.9s Time] [2021-11-25 19:13:46,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48506 states. [2021-11-25 19:13:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48506 to 48457. [2021-11-25 19:13:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48457 states, 30495 states have (on average 1.3448106246925726) internal successors, (41010), 31601 states have internal predecessors, (41010), 16006 states have call successors, (16006), 1959 states have call predecessors, (16006), 1955 states have return successors, (16032), 15419 states have call predecessors, (16032), 15994 states have call successors, (16032) [2021-11-25 19:13:49,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48457 states to 48457 states and 73048 transitions. [2021-11-25 19:13:50,012 INFO L78 Accepts]: Start accepts. Automaton has 48457 states and 73048 transitions. Word has length 450 [2021-11-25 19:13:50,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:50,013 INFO L470 AbstractCegarLoop]: Abstraction has 48457 states and 73048 transitions. [2021-11-25 19:13:50,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-25 19:13:50,014 INFO L276 IsEmpty]: Start isEmpty. Operand 48457 states and 73048 transitions. [2021-11-25 19:13:50,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2021-11-25 19:13:50,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:50,089 INFO L514 BasicCegarLoop]: trace histogram [37, 27, 27, 27, 27, 27, 27, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:13:50,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:13:50,090 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:13:50,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:50,091 INFO L85 PathProgramCache]: Analyzing trace with hash 687961710, now seen corresponding path program 1 times [2021-11-25 19:13:50,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:50,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412883024] [2021-11-25 19:13:50,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:50,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:51,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3633 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 3602 trivial. 0 not checked. [2021-11-25 19:13:51,517 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:51,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412883024] [2021-11-25 19:13:51,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412883024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:51,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:51,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:13:51,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631689939] [2021-11-25 19:13:51,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:51,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:13:51,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:13:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:13:51,520 INFO L87 Difference]: Start difference. First operand 48457 states and 73048 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-25 19:13:54,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:58,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:00,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:03,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:05,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:08,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:10,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:12,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:14,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:17,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:19,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:19,635 INFO L93 Difference]: Finished difference Result 139779 states and 210830 transitions. [2021-11-25 19:14:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:14:19,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 486 [2021-11-25 19:14:19,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:20,378 INFO L225 Difference]: With dead ends: 139779 [2021-11-25 19:14:20,378 INFO L226 Difference]: Without dead ends: 93506 [2021-11-25 19:14:20,526 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:14:20,530 INFO L933 BasicCegarLoop]: 7890 mSDtfsCounter, 4885 mSDsluCounter, 5207 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 12588 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:20,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4893 Valid, 12588 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1346 Invalid, 8 Unknown, 0 Unchecked, 25.9s Time] [2021-11-25 19:14:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93506 states. [2021-11-25 19:14:26,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93506 to 93440. [2021-11-25 19:14:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93440 states, 58892 states have (on average 1.345208177681179) internal successors, (79222), 60994 states have internal predecessors, (79222), 30808 states have call successors, (30808), 3743 states have call predecessors, (30808), 3739 states have return successors, (30906), 29697 states have call predecessors, (30906), 30796 states have call successors, (30906) [2021-11-25 19:14:27,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93440 states to 93440 states and 140936 transitions. [2021-11-25 19:14:27,318 INFO L78 Accepts]: Start accepts. Automaton has 93440 states and 140936 transitions. Word has length 486 [2021-11-25 19:14:27,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:27,320 INFO L470 AbstractCegarLoop]: Abstraction has 93440 states and 140936 transitions. [2021-11-25 19:14:27,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-25 19:14:27,320 INFO L276 IsEmpty]: Start isEmpty. Operand 93440 states and 140936 transitions. [2021-11-25 19:14:27,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-11-25 19:14:27,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:27,484 INFO L514 BasicCegarLoop]: trace histogram [38, 27, 27, 27, 27, 27, 27, 10, 10, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:14:27,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:14:27,485 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:14:27,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash 432849144, now seen corresponding path program 1 times [2021-11-25 19:14:27,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:27,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144418696] [2021-11-25 19:14:27,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:27,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:28,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3761 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 3736 trivial. 0 not checked. [2021-11-25 19:14:28,779 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:28,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144418696] [2021-11-25 19:14:28,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144418696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:28,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:28,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:14:28,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649532147] [2021-11-25 19:14:28,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:28,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:14:28,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:28,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:14:28,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:14:28,782 INFO L87 Difference]: Start difference. First operand 93440 states and 140936 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-25 19:14:31,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:34,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:39,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:41,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:44,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:48,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:50,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:51,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:55,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:57,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:59,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:03,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:15:03,120 INFO L93 Difference]: Finished difference Result 214254 states and 323147 transitions. [2021-11-25 19:15:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:15:03,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 500 [2021-11-25 19:15:03,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:15:03,849 INFO L225 Difference]: With dead ends: 214254 [2021-11-25 19:15:03,850 INFO L226 Difference]: Without dead ends: 122998 [2021-11-25 19:15:04,419 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:15:04,420 INFO L933 BasicCegarLoop]: 9024 mSDtfsCounter, 4769 mSDsluCounter, 5206 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4775 SdHoareTripleChecker+Valid, 13722 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:15:04,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4775 Valid, 13722 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1510 Invalid, 8 Unknown, 0 Unchecked, 30.7s Time] [2021-11-25 19:15:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122998 states. [2021-11-25 19:15:12,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122998 to 122968. [2021-11-25 19:15:12,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122968 states, 77526 states have (on average 1.344993937517736) internal successors, (104272), 80268 states have internal predecessors, (104272), 40517 states have call successors, (40517), 4928 states have call predecessors, (40517), 4924 states have return successors, (40639), 39096 states have call predecessors, (40639), 40505 states have call successors, (40639) [2021-11-25 19:15:12,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122968 states to 122968 states and 185428 transitions. [2021-11-25 19:15:12,905 INFO L78 Accepts]: Start accepts. Automaton has 122968 states and 185428 transitions. Word has length 500 [2021-11-25 19:15:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:15:12,906 INFO L470 AbstractCegarLoop]: Abstraction has 122968 states and 185428 transitions. [2021-11-25 19:15:12,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-25 19:15:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 122968 states and 185428 transitions. [2021-11-25 19:15:13,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2021-11-25 19:15:13,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:15:13,486 INFO L514 BasicCegarLoop]: trace histogram [38, 27, 27, 27, 27, 27, 27, 9, 9, 7, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:15:13,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:15:13,487 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:15:13,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:15:13,487 INFO L85 PathProgramCache]: Analyzing trace with hash -423031930, now seen corresponding path program 1 times [2021-11-25 19:15:13,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:15:13,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368679263] [2021-11-25 19:15:13,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:15:13,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:15:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:15:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3748 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 3677 trivial. 0 not checked. [2021-11-25 19:15:14,544 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:15:14,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368679263] [2021-11-25 19:15:14,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368679263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:15:14,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:15:14,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:15:14,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980490949] [2021-11-25 19:15:14,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:15:14,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:15:14,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:15:14,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:15:14,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:15:14,548 INFO L87 Difference]: Start difference. First operand 122968 states and 185428 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-25 19:15:17,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:20,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:24,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:27,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:29,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:31,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:35,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:39,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:41,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:43,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:45,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:47,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:49,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []