./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V --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 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:19:18,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:19:18,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:19:18,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:19:18,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:19:18,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:19:18,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:19:18,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:19:18,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:19:18,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:19:18,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:19:18,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:19:18,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:19:18,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:19:18,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:19:18,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:19:18,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:19:18,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:19:18,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:19:18,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:19:18,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:19:18,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:19:18,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:19:18,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:19:18,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:19:18,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:19:18,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:19:18,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:19:18,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:19:18,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:19:18,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:19:18,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:19:18,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:19:18,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:19:18,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:19:18,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:19:18,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:19:18,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:19:18,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:19:18,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:19:18,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:19:18,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:19:18,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:19:18,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:19:18,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:19:18,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:19:18,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:19:18,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:19:18,840 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:19:18,840 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:19:18,840 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:19:18,841 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:19:18,841 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:19:18,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:19:18,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:19:18,842 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:19:18,842 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:19:18,842 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:19:18,843 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:19:18,843 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:19:18,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:19:18,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:19:18,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:19:18,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:19:18,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:19:18,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:19:18,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:19:18,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:19:18,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:19:18,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:19:18,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:19:18,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:19:18,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:19:18,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:19:18,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:19:18,849 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:19:18,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:19:18,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:19:18,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:19:18,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:19:18,850 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_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 [2021-11-23 02:19:19,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:19:19,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:19:19,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:19:19,166 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:19:19,167 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:19:19,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2021-11-23 02:19:19,250 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/data/2cc56c4e4/7ad7f09e5d4e4a5386f8a2d0bd7f1b6c/FLAG8a15b7248 [2021-11-23 02:19:20,447 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:19:20,449 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2021-11-23 02:19:20,529 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/data/2cc56c4e4/7ad7f09e5d4e4a5386f8a2d0bd7f1b6c/FLAG8a15b7248 [2021-11-23 02:19:20,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/data/2cc56c4e4/7ad7f09e5d4e4a5386f8a2d0bd7f1b6c [2021-11-23 02:19:20,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:19:20,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:19:20,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:19:20,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:19:20,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:19:20,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:20" (1/1) ... [2021-11-23 02:19:20,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d53c3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:20, skipping insertion in model container [2021-11-23 02:19:20,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:20" (1/1) ... [2021-11-23 02:19:20,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:19:20,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:19:24,231 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_c172dedc-8c78-4205-b5e5-d67723c03269/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2021-11-23 02:19:24,234 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_c172dedc-8c78-4205-b5e5-d67723c03269/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2021-11-23 02:19:24,235 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_c172dedc-8c78-4205-b5e5-d67723c03269/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2021-11-23 02:19:24,236 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_c172dedc-8c78-4205-b5e5-d67723c03269/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2021-11-23 02:19:24,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:19:24,437 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:19:25,066 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_c172dedc-8c78-4205-b5e5-d67723c03269/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2021-11-23 02:19:25,067 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_c172dedc-8c78-4205-b5e5-d67723c03269/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2021-11-23 02:19:25,068 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_c172dedc-8c78-4205-b5e5-d67723c03269/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2021-11-23 02:19:25,069 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_c172dedc-8c78-4205-b5e5-d67723c03269/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2021-11-23 02:19:25,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:19:25,315 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:19:25,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25 WrapperNode [2021-11-23 02:19:25,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:19:25,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:19:25,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:19:25,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:19:25,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:25,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:25,812 INFO L137 Inliner]: procedures = 413, calls = 2523, calls flagged for inlining = 243, calls inlined = 230, statements flattened = 7164 [2021-11-23 02:19:25,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:19:25,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:19:25,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:19:25,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:19:25,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:25,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:25,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:25,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:26,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:26,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:26,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:26,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:19:26,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:19:26,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:19:26,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:19:26,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (1/1) ... [2021-11-23 02:19:26,360 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:19:26,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:19:26,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:19:26,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c172dedc-8c78-4205-b5e5-d67723c03269/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:19:26,464 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_has_diversity [2021-11-23 02:19:26,464 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_has_diversity [2021-11-23 02:19:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:19:26,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:19:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_acf_status [2021-11-23 02:19:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:19:26,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:19:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_ctrl [2021-11-23 02:19:26,466 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_ctrl [2021-11-23 02:19:26,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:19:26,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:19:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_probe [2021-11-23 02:19:26,467 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_probe [2021-11-23 02:19:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_acf_status [2021-11-23 02:19:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_phase_div_status [2021-11-23 02:19:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:19:26,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:19:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-11-23 02:19:26,468 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-11-23 02:19:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:19:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:19:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_lock [2021-11-23 02:19:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_lock [2021-11-23 02:19:26,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:19:26,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:19:26,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-23 02:19:26,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-23 02:19:26,470 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_acf_blob [2021-11-23 02:19:26,471 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_acf_blob [2021-11-23 02:19:26,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:19:26,471 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_rsq_status [2021-11-23 02:19:26,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:19:26,472 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-11-23 02:19:26,472 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-11-23 02:19:26,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:19:26,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:19:26,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:19:26,473 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_remove [2021-11-23 02:19:26,473 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_remove [2021-11-23 02:19:26,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:19:26,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:19:26,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:19:26,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:19:26,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:19:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-11-23 02:19:26,477 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-11-23 02:19:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_has_am [2021-11-23 02:19:26,477 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_has_am [2021-11-23 02:19:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_read [2021-11-23 02:19:26,478 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_read [2021-11-23 02:19:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2021-11-23 02:19:26,479 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2021-11-23 02:19:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_tuner [2021-11-23 02:19:26,479 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_tuner [2021-11-23 02:19:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_change_func [2021-11-23 02:19:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_change_func [2021-11-23 02:19:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_frequency [2021-11-23 02:19:26,481 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_frequency [2021-11-23 02:19:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:19:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 02:19:26,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 02:19:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:19:26,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:19:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 02:19:26,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 02:19:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-23 02:19:26,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-23 02:19:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-23 02:19:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-23 02:19:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2021-11-23 02:19:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2021-11-23 02:19:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:19:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_to_v4l2 [2021-11-23 02:19:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_to_v4l2 [2021-11-23 02:19:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_querycap [2021-11-23 02:19:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_querycap [2021-11-23 02:19:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:19:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:19:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:19:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:19:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:19:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:19:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:19:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_register [2021-11-23 02:19:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_register [2021-11-23 02:19:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmd_lock_of_si476x_core [2021-11-23 02:19:26,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmd_lock_of_si476x_core [2021-11-23 02:19:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_seek_start [2021-11-23 02:19:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_agc_status [2021-11-23 02:19:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_frequency [2021-11-23 02:19:26,493 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_frequency [2021-11-23 02:19:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2021-11-23 02:19:26,494 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2021-11-23 02:19:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_open [2021-11-23 02:19:26,494 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_open [2021-11-23 02:19:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:19:26,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:19:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_add_new_custom [2021-11-23 02:19:26,495 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_add_new_custom [2021-11-23 02:19:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 02:19:26,496 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 02:19:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:19:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:19:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:19:26,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:19:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_tune_freq [2021-11-23 02:19:26,501 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_read [2021-11-23 02:19:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_read [2021-11-23 02:19:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_is_in_am_receiver_mode [2021-11-23 02:19:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_is_in_am_receiver_mode [2021-11-23 02:19:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_to_radio [2021-11-23 02:19:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_to_radio [2021-11-23 02:19:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 02:19:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 02:19:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rds_blckcnt_blob [2021-11-23 02:19:26,512 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rds_blckcnt_blob [2021-11-23 02:19:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_update_bits [2021-11-23 02:19:26,513 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_update_bits [2021-11-23 02:19:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_enum_freq_bands [2021-11-23 02:19:26,513 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_enum_freq_bands [2021-11-23 02:19:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-23 02:19:26,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-23 02:19:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2021-11-23 02:19:26,514 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2021-11-23 02:19:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:19:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_rds_blockcount [2021-11-23 02:19:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_register [2021-11-23 02:19:26,515 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_register [2021-11-23 02:19:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:19:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_phase_diversity [2021-11-23 02:19:26,515 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_cmd_fm_phase_diversity [2021-11-23 02:19:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 02:19:26,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 02:19:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:19:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_to_si476x [2021-11-23 02:19:26,517 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_to_si476x [2021-11-23 02:19:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_do_post_powerup_init [2021-11-23 02:19:26,517 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_do_post_powerup_init [2021-11-23 02:19:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_write [2021-11-23 02:19:26,517 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_write [2021-11-23 02:19:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_seek_start [2021-11-23 02:19:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2021-11-23 02:19:26,518 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2021-11-23 02:19:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:19:26,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:19:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2021-11-23 02:19:26,519 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2021-11-23 02:19:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rsq_blob [2021-11-23 02:19:26,519 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rsq_blob [2021-11-23 02:19:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_range_is_inside_of_the_band [2021-11-23 02:19:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_range_is_inside_of_the_band [2021-11-23 02:19:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-23 02:19:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-23 02:19:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_set_power_state [2021-11-23 02:19:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_set_power_state [2021-11-23 02:19:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure regcache_cache_only [2021-11-23 02:19:26,521 INFO L138 BoogieDeclarations]: Found implementation of procedure regcache_cache_only [2021-11-23 02:19:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-23 02:19:26,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-23 02:19:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-23 02:19:26,522 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-23 02:19:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_release [2021-11-23 02:19:26,522 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_release [2021-11-23 02:19:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:19:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_hw_freq_seek [2021-11-23 02:19:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_hw_freq_seek [2021-11-23 02:19:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rsq_primary_blob [2021-11-23 02:19:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rsq_primary_blob [2021-11-23 02:19:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_agc_blob [2021-11-23 02:19:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_agc_blob [2021-11-23 02:19:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:19:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:19:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2021-11-23 02:19:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2021-11-23 02:19:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_tuner [2021-11-23 02:19:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_tuner [2021-11-23 02:19:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_stop [2021-11-23 02:19:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_stop [2021-11-23 02:19:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_poll [2021-11-23 02:19:26,527 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_poll [2021-11-23 02:19:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_tune_freq [2021-11-23 02:19:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_si476x_radio_driver_exit_17_2 [2021-11-23 02:19:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_si476x_radio_driver_exit_17_2 [2021-11-23 02:19:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_is_a_secondary_tuner [2021-11-23 02:19:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_is_a_secondary_tuner [2021-11-23 02:19:26,529 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-23 02:19:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-23 02:19:26,529 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 02:19:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 02:19:26,529 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_is_singular_file [2021-11-23 02:19:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_is_singular_file [2021-11-23 02:19:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:19:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:19:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_unlock [2021-11-23 02:19:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_unlock [2021-11-23 02:19:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_release [2021-11-23 02:19:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_release [2021-11-23 02:19:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:19:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:19:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2021-11-23 02:19:26,532 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2021-11-23 02:19:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_volatile_ctrl [2021-11-23 02:19:26,532 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_volatile_ctrl [2021-11-23 02:19:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:19:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure regcache_sync_region [2021-11-23 02:19:26,533 INFO L138 BoogieDeclarations]: Found implementation of procedure regcache_sync_region [2021-11-23 02:19:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_rsq_status [2021-11-23 02:19:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:19:26,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:19:27,949 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:19:27,961 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:19:28,217 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:19:36,934 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:19:37,138 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:19:38,573 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:19:38,573 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:19:38,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:38 BoogieIcfgContainer [2021-11-23 02:19:38,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:19:38,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:19:38,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:19:38,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:19:38,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:20" (1/3) ... [2021-11-23 02:19:38,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1920f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:38, skipping insertion in model container [2021-11-23 02:19:38,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25" (2/3) ... [2021-11-23 02:19:38,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1920f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:38, skipping insertion in model container [2021-11-23 02:19:38,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:38" (3/3) ... [2021-11-23 02:19:38,593 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2021-11-23 02:19:38,605 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:19:38,605 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-23 02:19:38,694 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:19:38,712 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 [2021-11-23 02:19:38,719 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 02:19:38,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 2089 states, 1292 states have (on average 1.3544891640866874) internal successors, (1750), 1295 states have internal predecessors, (1750), 704 states have call successors, (704), 91 states have call predecessors, (704), 90 states have return successors, (693), 693 states have call predecessors, (693), 693 states have call successors, (693) [2021-11-23 02:19:38,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2021-11-23 02:19:38,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:19:38,894 INFO L514 BasicCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:19:38,895 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_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:19:38,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:19:38,904 INFO L85 PathProgramCache]: Analyzing trace with hash -569538716, now seen corresponding path program 1 times [2021-11-23 02:19:38,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:19:38,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151349047] [2021-11-23 02:19:38,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:19:38,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:19:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:19:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 19463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19463 trivial. 0 not checked. [2021-11-23 02:19:40,560 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:19:40,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151349047] [2021-11-23 02:19:40,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151349047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:19:40,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:19:40,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:19:40,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793224221] [2021-11-23 02:19:40,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:19:40,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:19:40,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:19:40,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:19:40,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:19:40,616 INFO L87 Difference]: Start difference. First operand has 2089 states, 1292 states have (on average 1.3544891640866874) internal successors, (1750), 1295 states have internal predecessors, (1750), 704 states have call successors, (704), 91 states have call predecessors, (704), 90 states have return successors, (693), 693 states have call predecessors, (693), 693 states have call successors, (693) Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2021-11-23 02:19:42,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:44,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:47,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:48,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:19:48,184 INFO L93 Difference]: Finished difference Result 5891 states and 9117 transitions. [2021-11-23 02:19:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:19:48,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 725 [2021-11-23 02:19:48,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:19:48,260 INFO L225 Difference]: With dead ends: 5891 [2021-11-23 02:19:48,261 INFO L226 Difference]: Without dead ends: 3928 [2021-11-23 02:19:48,287 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 [2021-11-23 02:19:48,291 INFO L933 BasicCegarLoop]: 3298 mSDtfsCounter, 2835 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 5958 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:19:48,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2837 Valid, 5958 Invalid, 906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 892 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-23 02:19:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3928 states. [2021-11-23 02:19:48,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 3924. [2021-11-23 02:19:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 2460 states have (on average 1.3565040650406504) internal successors, (3337), 2465 states have internal predecessors, (3337), 1285 states have call successors, (1285), 177 states have call predecessors, (1285), 176 states have return successors, (1283), 1281 states have call predecessors, (1283), 1281 states have call successors, (1283) [2021-11-23 02:19:48,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5905 transitions. [2021-11-23 02:19:48,780 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5905 transitions. Word has length 725 [2021-11-23 02:19:48,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:19:48,784 INFO L470 AbstractCegarLoop]: Abstraction has 3924 states and 5905 transitions. [2021-11-23 02:19:48,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2021-11-23 02:19:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5905 transitions. [2021-11-23 02:19:48,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2021-11-23 02:19:48,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:19:48,822 INFO L514 BasicCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:19:48,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:19:48,823 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:19:48,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:19:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1044504585, now seen corresponding path program 1 times [2021-11-23 02:19:48,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:19:48,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081797269] [2021-11-23 02:19:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:19:48,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:19:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:19:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 19460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19460 trivial. 0 not checked. [2021-11-23 02:19:49,415 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:19:49,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081797269] [2021-11-23 02:19:49,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081797269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:19:49,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:19:49,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:19:49,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975963295] [2021-11-23 02:19:49,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:19:49,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:19:49,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:19:49,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:19:49,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:19:49,422 INFO L87 Difference]: Start difference. First operand 3924 states and 5905 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2021-11-23 02:19:52,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:54,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:55,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:19:55,417 INFO L93 Difference]: Finished difference Result 9606 states and 14458 transitions. [2021-11-23 02:19:55,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:19:55,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 732 [2021-11-23 02:19:55,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:19:55,486 INFO L225 Difference]: With dead ends: 9606 [2021-11-23 02:19:55,487 INFO L226 Difference]: Without dead ends: 5823 [2021-11-23 02:19:55,511 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 [2021-11-23 02:19:55,513 INFO L933 BasicCegarLoop]: 3299 mSDtfsCounter, 2848 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 5965 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:19:55,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2850 Valid, 5965 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 871 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2021-11-23 02:19:55,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5823 states. [2021-11-23 02:19:55,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5823 to 5798. [2021-11-23 02:19:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5798 states, 3639 states have (on average 1.3583402033525693) internal successors, (4943), 3649 states have internal predecessors, (4943), 1891 states have call successors, (1891), 266 states have call predecessors, (1891), 265 states have return successors, (1891), 1882 states have call predecessors, (1891), 1887 states have call successors, (1891) [2021-11-23 02:19:55,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5798 states to 5798 states and 8725 transitions. [2021-11-23 02:19:55,948 INFO L78 Accepts]: Start accepts. Automaton has 5798 states and 8725 transitions. Word has length 732 [2021-11-23 02:19:55,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:19:55,951 INFO L470 AbstractCegarLoop]: Abstraction has 5798 states and 8725 transitions. [2021-11-23 02:19:55,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2021-11-23 02:19:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5798 states and 8725 transitions. [2021-11-23 02:19:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2021-11-23 02:19:55,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:19:55,969 INFO L514 BasicCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:19:55,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:19:55,969 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:19:55,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:19:55,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1336953691, now seen corresponding path program 1 times [2021-11-23 02:19:55,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:19:55,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827440556] [2021-11-23 02:19:55,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:19:55,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:19:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:19:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 19460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19460 trivial. 0 not checked. [2021-11-23 02:19:56,627 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:19:56,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827440556] [2021-11-23 02:19:56,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827440556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:19:56,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:19:56,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:19:56,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613784241] [2021-11-23 02:19:56,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:19:56,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:19:56,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:19:56,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:19:56,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:19:56,633 INFO L87 Difference]: Start difference. First operand 5798 states and 8725 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2021-11-23 02:19:59,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:01,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:02,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:02,703 INFO L93 Difference]: Finished difference Result 16518 states and 24878 transitions. [2021-11-23 02:20:02,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:02,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 741 [2021-11-23 02:20:02,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:02,825 INFO L225 Difference]: With dead ends: 16518 [2021-11-23 02:20:02,825 INFO L226 Difference]: Without dead ends: 10861 [2021-11-23 02:20:02,870 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 [2021-11-23 02:20:02,874 INFO L933 BasicCegarLoop]: 3375 mSDtfsCounter, 2668 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2670 SdHoareTripleChecker+Valid, 5997 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:02,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2670 Valid, 5997 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 969 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2021-11-23 02:20:02,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2021-11-23 02:20:03,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10831. [2021-11-23 02:20:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10831 states, 6778 states have (on average 1.3506934198878726) internal successors, (9155), 6802 states have internal predecessors, (9155), 3541 states have call successors, (3541), 510 states have call predecessors, (3541), 509 states have return successors, (3549), 3518 states have call predecessors, (3549), 3537 states have call successors, (3549) [2021-11-23 02:20:03,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10831 states to 10831 states and 16245 transitions. [2021-11-23 02:20:03,943 INFO L78 Accepts]: Start accepts. Automaton has 10831 states and 16245 transitions. Word has length 741 [2021-11-23 02:20:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:03,945 INFO L470 AbstractCegarLoop]: Abstraction has 10831 states and 16245 transitions. [2021-11-23 02:20:03,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2021-11-23 02:20:03,969 INFO L276 IsEmpty]: Start isEmpty. Operand 10831 states and 16245 transitions. [2021-11-23 02:20:03,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2021-11-23 02:20:03,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:03,987 INFO L514 BasicCegarLoop]: trace histogram [72, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:03,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:20:03,988 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:20:03,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:03,990 INFO L85 PathProgramCache]: Analyzing trace with hash -920292249, now seen corresponding path program 1 times [2021-11-23 02:20:03,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:03,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699965797] [2021-11-23 02:20:03,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:03,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:04,833 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20022 trivial. 0 not checked. [2021-11-23 02:20:04,833 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:04,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699965797] [2021-11-23 02:20:04,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699965797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:04,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:04,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:20:04,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867985915] [2021-11-23 02:20:04,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:04,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:04,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:04,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:04,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:04,840 INFO L87 Difference]: Start difference. First operand 10831 states and 16245 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2021-11-23 02:20:08,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:10,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:12,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:14,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:15,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:15,120 INFO L93 Difference]: Finished difference Result 28443 states and 42609 transitions. [2021-11-23 02:20:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:15,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 751 [2021-11-23 02:20:15,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:15,310 INFO L225 Difference]: With dead ends: 28443 [2021-11-23 02:20:15,310 INFO L226 Difference]: Without dead ends: 17753 [2021-11-23 02:20:15,399 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 [2021-11-23 02:20:15,402 INFO L933 BasicCegarLoop]: 3488 mSDtfsCounter, 2776 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2777 SdHoareTripleChecker+Valid, 6143 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:15,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2777 Valid, 6143 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 902 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2021-11-23 02:20:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17753 states. [2021-11-23 02:20:16,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17753 to 17724. [2021-11-23 02:20:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17724 states, 11065 states have (on average 1.346678716674198) internal successors, (14901), 11118 states have internal predecessors, (14901), 5801 states have call successors, (5801), 855 states have call predecessors, (5801), 855 states have return successors, (5811), 5750 states have call predecessors, (5811), 5797 states have call successors, (5811) [2021-11-23 02:20:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17724 states to 17724 states and 26513 transitions. [2021-11-23 02:20:16,858 INFO L78 Accepts]: Start accepts. Automaton has 17724 states and 26513 transitions. Word has length 751 [2021-11-23 02:20:16,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:16,860 INFO L470 AbstractCegarLoop]: Abstraction has 17724 states and 26513 transitions. [2021-11-23 02:20:16,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2021-11-23 02:20:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 17724 states and 26513 transitions. [2021-11-23 02:20:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2021-11-23 02:20:16,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:16,879 INFO L514 BasicCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:16,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:20:16,880 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:20:16,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash 280173976, now seen corresponding path program 1 times [2021-11-23 02:20:16,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:16,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439682074] [2021-11-23 02:20:16,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:16,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 19487 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19487 trivial. 0 not checked. [2021-11-23 02:20:17,449 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:17,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439682074] [2021-11-23 02:20:17,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439682074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:17,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:17,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:20:17,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958425840] [2021-11-23 02:20:17,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:17,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:17,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:17,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:17,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:17,454 INFO L87 Difference]: Start difference. First operand 17724 states and 26513 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2021-11-23 02:20:21,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:23,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:24,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:24,239 INFO L93 Difference]: Finished difference Result 49024 states and 73303 transitions. [2021-11-23 02:20:24,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:24,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 765 [2021-11-23 02:20:24,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:24,445 INFO L225 Difference]: With dead ends: 49024 [2021-11-23 02:20:24,445 INFO L226 Difference]: Without dead ends: 31441 [2021-11-23 02:20:24,539 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 [2021-11-23 02:20:24,541 INFO L933 BasicCegarLoop]: 3332 mSDtfsCounter, 2780 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 5982 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:24,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2782 Valid, 5982 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 898 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2021-11-23 02:20:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31441 states. [2021-11-23 02:20:26,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31441 to 31404. [2021-11-23 02:20:26,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31404 states, 19679 states have (on average 1.3466639565018548) internal successors, (26501), 19796 states have internal predecessors, (26501), 10169 states have call successors, (10169), 1553 states have call predecessors, (10169), 1553 states have return successors, (10191), 10054 states have call predecessors, (10191), 10165 states have call successors, (10191) [2021-11-23 02:20:26,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31404 states to 31404 states and 46861 transitions. [2021-11-23 02:20:26,909 INFO L78 Accepts]: Start accepts. Automaton has 31404 states and 46861 transitions. Word has length 765 [2021-11-23 02:20:26,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:26,911 INFO L470 AbstractCegarLoop]: Abstraction has 31404 states and 46861 transitions. [2021-11-23 02:20:26,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2021-11-23 02:20:26,912 INFO L276 IsEmpty]: Start isEmpty. Operand 31404 states and 46861 transitions. [2021-11-23 02:20:26,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2021-11-23 02:20:26,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:26,934 INFO L514 BasicCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:26,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:20:26,935 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:20:26,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:26,937 INFO L85 PathProgramCache]: Analyzing trace with hash 933432000, now seen corresponding path program 1 times [2021-11-23 02:20:26,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:26,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763780186] [2021-11-23 02:20:26,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:26,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:27,628 INFO L134 CoverageAnalysis]: Checked inductivity of 19487 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19487 trivial. 0 not checked. [2021-11-23 02:20:27,629 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:27,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763780186] [2021-11-23 02:20:27,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763780186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:27,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:27,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:20:27,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776921595] [2021-11-23 02:20:27,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:27,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:27,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:27,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:27,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:27,633 INFO L87 Difference]: Start difference. First operand 31404 states and 46861 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2021-11-23 02:20:31,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:33,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:35,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:35,067 INFO L93 Difference]: Finished difference Result 89734 states and 133845 transitions. [2021-11-23 02:20:35,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:35,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 766 [2021-11-23 02:20:35,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:35,648 INFO L225 Difference]: With dead ends: 89734 [2021-11-23 02:20:35,648 INFO L226 Difference]: Without dead ends: 58471 [2021-11-23 02:20:35,775 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 [2021-11-23 02:20:35,777 INFO L933 BasicCegarLoop]: 3389 mSDtfsCounter, 2779 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 6039 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:35,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2781 Valid, 6039 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 910 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2021-11-23 02:20:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58471 states. [2021-11-23 02:20:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58471 to 58434. [2021-11-23 02:20:39,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58434 states, 36745 states have (on average 1.3458974010069398) internal successors, (49455), 36990 states have internal predecessors, (49455), 18737 states have call successors, (18737), 2949 states have call predecessors, (18737), 2949 states have return successors, (18783), 18494 states have call predecessors, (18783), 18733 states have call successors, (18783) [2021-11-23 02:20:39,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58434 states to 58434 states and 86975 transitions. [2021-11-23 02:20:39,839 INFO L78 Accepts]: Start accepts. Automaton has 58434 states and 86975 transitions. Word has length 766 [2021-11-23 02:20:39,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:39,841 INFO L470 AbstractCegarLoop]: Abstraction has 58434 states and 86975 transitions. [2021-11-23 02:20:39,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2021-11-23 02:20:39,842 INFO L276 IsEmpty]: Start isEmpty. Operand 58434 states and 86975 transitions. [2021-11-23 02:20:39,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2021-11-23 02:20:39,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:39,865 INFO L514 BasicCegarLoop]: trace histogram [72, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:39,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:20:39,866 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:20:39,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:39,867 INFO L85 PathProgramCache]: Analyzing trace with hash 282176416, now seen corresponding path program 1 times [2021-11-23 02:20:39,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:39,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8978194] [2021-11-23 02:20:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:39,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20022 trivial. 0 not checked. [2021-11-23 02:20:40,560 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:40,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8978194] [2021-11-23 02:20:40,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8978194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:40,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:40,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:20:40,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659333819] [2021-11-23 02:20:40,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:40,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:40,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:40,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:40,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:40,565 INFO L87 Difference]: Start difference. First operand 58434 states and 86975 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-23 02:20:44,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:46,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:49,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:49,627 INFO L93 Difference]: Finished difference Result 170292 states and 253363 transitions. [2021-11-23 02:20:49,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:49,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 761 [2021-11-23 02:20:49,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:50,315 INFO L225 Difference]: With dead ends: 170292 [2021-11-23 02:20:50,317 INFO L226 Difference]: Without dead ends: 111999 [2021-11-23 02:20:50,567 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 [2021-11-23 02:20:50,568 INFO L933 BasicCegarLoop]: 3297 mSDtfsCounter, 2782 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 5949 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:50,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 5949 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 896 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2021-11-23 02:20:50,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111999 states. [2021-11-23 02:20:55,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111999 to 111914. [2021-11-23 02:20:55,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111914 states, 70587 states have (on average 1.3445960304305324) internal successors, (94911), 71136 states have internal predecessors, (94911), 35583 states have call successors, (35583), 5741 states have call predecessors, (35583), 5741 states have return successors, (35677), 35036 states have call predecessors, (35677), 35579 states have call successors, (35677) [2021-11-23 02:20:56,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111914 states to 111914 states and 166171 transitions. [2021-11-23 02:20:56,780 INFO L78 Accepts]: Start accepts. Automaton has 111914 states and 166171 transitions. Word has length 761 [2021-11-23 02:20:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:56,782 INFO L470 AbstractCegarLoop]: Abstraction has 111914 states and 166171 transitions. [2021-11-23 02:20:56,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-23 02:20:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 111914 states and 166171 transitions. [2021-11-23 02:20:56,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2021-11-23 02:20:56,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:56,815 INFO L514 BasicCegarLoop]: trace histogram [72, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:56,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:20:56,816 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:20:56,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:56,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2009926355, now seen corresponding path program 1 times [2021-11-23 02:20:56,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:56,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349887803] [2021-11-23 02:20:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:56,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20022 trivial. 0 not checked. [2021-11-23 02:20:57,463 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:57,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349887803] [2021-11-23 02:20:57,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349887803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:57,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:57,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:20:57,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755825570] [2021-11-23 02:20:57,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:57,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:20:57,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:57,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:20:57,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:20:57,466 INFO L87 Difference]: Start difference. First operand 111914 states and 166171 transitions. Second operand has 6 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-23 02:21:06,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:21:08,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:21:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:23,483 INFO L93 Difference]: Finished difference Result 434993 states and 645339 transitions. [2021-11-23 02:21:23,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:21:23,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 759 [2021-11-23 02:21:23,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:25,396 INFO L225 Difference]: With dead ends: 434993 [2021-11-23 02:21:25,397 INFO L226 Difference]: Without dead ends: 323220 [2021-11-23 02:21:25,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:21:25,835 INFO L933 BasicCegarLoop]: 3904 mSDtfsCounter, 13193 mSDsluCounter, 5017 mSDsCounter, 0 mSdLazyCounter, 3979 mSolverCounterSat, 5176 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13553 SdHoareTripleChecker+Valid, 7941 SdHoareTripleChecker+Invalid, 9157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5176 IncrementalHoareTripleChecker+Valid, 3979 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:25,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13553 Valid, 7941 Invalid, 9157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5176 Valid, 3979 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2021-11-23 02:21:26,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323220 states.