./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P --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 ed68d02e3340e974ceb85a32805324d7a9365cc739c1b33e4c9dbafc7a73800a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:31:06,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:31:06,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:31:06,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:31:06,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:31:06,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:31:06,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:31:06,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:31:06,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:31:06,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:31:06,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:31:06,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:31:06,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:31:06,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:31:06,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:31:06,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:31:06,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:31:06,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:31:06,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:31:06,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:31:06,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:31:06,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:31:06,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:31:06,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:31:06,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:31:06,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:31:06,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:31:06,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:31:06,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:31:06,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:31:06,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:31:06,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:31:06,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:31:06,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:31:06,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:31:06,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:31:06,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:31:06,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:31:06,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:31:06,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:31:06,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:31:06,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:31:06,859 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:31:06,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:31:06,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:31:06,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:31:06,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:31:06,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:31:06,861 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:31:06,862 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:31:06,862 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:31:06,862 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:31:06,863 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:31:06,863 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:31:06,863 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:31:06,863 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:31:06,864 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:31:06,864 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:31:06,864 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:31:06,864 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:31:06,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:31:06,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:31:06,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:31:06,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:31:06,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:31:06,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:31:06,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:31:06,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:31:06,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:31:06,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:31:06,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:31:06,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:31:06,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:31:06,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:31:06,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:31:06,869 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:31:06,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:31:06,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:31:06,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:31:06,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:31:06,871 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_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed68d02e3340e974ceb85a32805324d7a9365cc739c1b33e4c9dbafc7a73800a [2021-11-21 00:31:07,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:31:07,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:31:07,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:31:07,238 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:31:07,239 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:31:07,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-21 00:31:07,357 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/data/37746ccf0/08b77922dd994b6c9d977aebb7ea4263/FLAG72b321467 [2021-11-21 00:31:08,556 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:31:08,558 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-21 00:31:08,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/data/37746ccf0/08b77922dd994b6c9d977aebb7ea4263/FLAG72b321467 [2021-11-21 00:31:08,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/data/37746ccf0/08b77922dd994b6c9d977aebb7ea4263 [2021-11-21 00:31:08,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:31:08,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:31:08,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:31:08,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:31:08,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:31:08,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:31:08" (1/1) ... [2021-11-21 00:31:08,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98a5f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:08, skipping insertion in model container [2021-11-21 00:31:08,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:31:08" (1/1) ... [2021-11-21 00:31:08,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:31:09,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:31:14,013 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_2257c698-858f-4190-af20-1864a59e8fe5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i[491185,491198] [2021-11-21 00:31:14,016 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_2257c698-858f-4190-af20-1864a59e8fe5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i[491330,491343] [2021-11-21 00:31:14,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:31:14,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:31:14,876 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_2257c698-858f-4190-af20-1864a59e8fe5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i[491185,491198] [2021-11-21 00:31:14,877 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_2257c698-858f-4190-af20-1864a59e8fe5/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i[491330,491343] [2021-11-21 00:31:14,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:31:15,253 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:31:15,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15 WrapperNode [2021-11-21 00:31:15,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:31:15,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:31:15,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:31:15,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:31:15,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:15,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:15,838 INFO L137 Inliner]: procedures = 473, calls = 4713, calls flagged for inlining = 228, calls inlined = 198, statements flattened = 9013 [2021-11-21 00:31:15,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:31:15,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:31:15,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:31:15,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:31:15,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:15,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:15,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:15,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:16,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:16,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:16,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:16,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:31:16,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:31:16,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:31:16,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:31:16,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (1/1) ... [2021-11-21 00:31:16,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:31:16,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:31:16,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:31:16,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2257c698-858f-4190-af20-1864a59e8fe5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:31:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2021-11-21 00:31:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2021-11-21 00:31:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-21 00:31:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-21 00:31:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2021-11-21 00:31:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2021-11-21 00:31:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2021-11-21 00:31:16,395 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2021-11-21 00:31:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:31:16,395 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:31:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2021-11-21 00:31:16,395 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2021-11-21 00:31:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2021-11-21 00:31:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2021-11-21 00:31:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:31:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:31:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2021-11-21 00:31:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2021-11-21 00:31:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2021-11-21 00:31:16,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2021-11-21 00:31:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2021-11-21 00:31:16,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2021-11-21 00:31:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2021-11-21 00:31:16,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2021-11-21 00:31:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2021-11-21 00:31:16,398 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2021-11-21 00:31:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2021-11-21 00:31:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2021-11-21 00:31:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2021-11-21 00:31:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2021-11-21 00:31:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:31:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:31:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-21 00:31:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-21 00:31:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:31:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:31:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:31:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:31:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:31:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2021-11-21 00:31:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2021-11-21 00:31:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2021-11-21 00:31:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2021-11-21 00:31:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2021-11-21 00:31:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2021-11-21 00:31:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-21 00:31:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-21 00:31:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 00:31:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 00:31:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2021-11-21 00:31:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2021-11-21 00:31:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2021-11-21 00:31:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2021-11-21 00:31:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2021-11-21 00:31:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2021-11-21 00:31:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2021-11-21 00:31:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2021-11-21 00:31:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:31:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2021-11-21 00:31:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2021-11-21 00:31:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-11-21 00:31:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-11-21 00:31:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:31:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:31:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:31:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2021-11-21 00:31:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2021-11-21 00:31:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2021-11-21 00:31:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2021-11-21 00:31:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:31:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 00:31:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 00:31:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2021-11-21 00:31:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2021-11-21 00:31:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:31:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:31:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:31:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:31:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 00:31:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 00:31:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2021-11-21 00:31:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2021-11-21 00:31:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2021-11-21 00:31:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2021-11-21 00:31:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2021-11-21 00:31:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2021-11-21 00:31:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:31:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2021-11-21 00:31:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2021-11-21 00:31:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2021-11-21 00:31:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2021-11-21 00:31:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:31:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:31:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2021-11-21 00:31:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2021-11-21 00:31:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 00:31:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 00:31:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:31:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2021-11-21 00:31:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2021-11-21 00:31:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:31:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:31:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2021-11-21 00:31:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2021-11-21 00:31:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:31:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2021-11-21 00:31:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2021-11-21 00:31:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2021-11-21 00:31:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2021-11-21 00:31:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:31:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:31:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2021-11-21 00:31:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2021-11-21 00:31:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:31:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:31:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 00:31:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 00:31:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2021-11-21 00:31:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2021-11-21 00:31:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 00:31:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 00:31:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2021-11-21 00:31:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2021-11-21 00:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-21 00:31:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-21 00:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:31:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:31:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:31:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-21 00:31:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-21 00:31:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-21 00:31:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-21 00:31:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:31:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:31:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:31:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:31:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2021-11-21 00:31:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2021-11-21 00:31:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-21 00:31:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-21 00:31:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2021-11-21 00:31:16,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2021-11-21 00:31:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 00:31:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 00:31:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2021-11-21 00:31:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2021-11-21 00:31:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-21 00:31:16,510 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-21 00:31:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2021-11-21 00:31:16,510 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2021-11-21 00:31:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2021-11-21 00:31:16,510 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2021-11-21 00:31:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2021-11-21 00:31:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2021-11-21 00:31:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 00:31:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 00:31:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2021-11-21 00:31:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2021-11-21 00:31:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:31:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:31:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-21 00:31:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-21 00:31:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:31:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 00:31:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 00:31:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2021-11-21 00:31:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2021-11-21 00:31:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:31:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2021-11-21 00:31:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2021-11-21 00:31:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2021-11-21 00:31:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2021-11-21 00:31:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2021-11-21 00:31:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2021-11-21 00:31:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-21 00:31:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-21 00:31:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:31:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2021-11-21 00:31:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2021-11-21 00:31:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 00:31:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 00:31:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2021-11-21 00:31:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2021-11-21 00:31:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-21 00:31:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-21 00:31:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:31:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:31:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2021-11-21 00:31:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2021-11-21 00:31:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:31:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:31:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 00:31:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 00:31:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2021-11-21 00:31:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2021-11-21 00:31:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-21 00:31:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-21 00:31:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 00:31:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 00:31:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2021-11-21 00:31:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2021-11-21 00:31:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-21 00:31:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-21 00:31:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2021-11-21 00:31:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2021-11-21 00:31:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:31:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:31:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2021-11-21 00:31:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2021-11-21 00:31:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2021-11-21 00:31:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2021-11-21 00:31:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2021-11-21 00:31:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2021-11-21 00:31:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:31:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2021-11-21 00:31:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2021-11-21 00:31:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:31:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:31:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2021-11-21 00:31:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2021-11-21 00:31:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-21 00:31:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-21 00:31:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-21 00:31:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-21 00:31:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2021-11-21 00:31:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2021-11-21 00:31:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:31:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:31:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 00:31:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 00:31:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2021-11-21 00:31:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2021-11-21 00:31:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2021-11-21 00:31:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2021-11-21 00:31:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2021-11-21 00:31:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2021-11-21 00:31:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2021-11-21 00:31:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2021-11-21 00:31:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2021-11-21 00:31:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2021-11-21 00:31:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 00:31:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:31:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-21 00:31:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-21 00:31:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2021-11-21 00:31:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2021-11-21 00:31:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:31:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:31:17,836 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:31:17,840 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:31:20,410 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:31:42,909 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:31:43,268 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:31:45,197 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:31:45,197 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 00:31:45,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:31:45 BoogieIcfgContainer [2021-11-21 00:31:45,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:31:45,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:31:45,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:31:45,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:31:45,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:31:08" (1/3) ... [2021-11-21 00:31:45,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ef3f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:31:45, skipping insertion in model container [2021-11-21 00:31:45,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:15" (2/3) ... [2021-11-21 00:31:45,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ef3f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:31:45, skipping insertion in model container [2021-11-21 00:31:45,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:31:45" (3/3) ... [2021-11-21 00:31:45,217 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-21 00:31:45,224 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:31:45,224 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:31:45,309 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:31:45,316 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 [2021-11-21 00:31:45,316 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:31:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 2040 states, 1229 states have (on average 1.3108218063466233) internal successors, (1611), 1231 states have internal predecessors, (1611), 695 states have call successors, (695), 116 states have call predecessors, (695), 115 states have return successors, (687), 687 states have call predecessors, (687), 687 states have call successors, (687) [2021-11-21 00:31:45,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-11-21 00:31:45,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:45,478 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:45,479 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:31:45,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:45,492 INFO L85 PathProgramCache]: Analyzing trace with hash 2119721171, now seen corresponding path program 1 times [2021-11-21 00:31:45,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:31:45,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781923465] [2021-11-21 00:31:45,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:45,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:31:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:47,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2021-11-21 00:31:47,071 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:31:47,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781923465] [2021-11-21 00:31:47,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781923465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:47,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:47,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:31:47,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118388013] [2021-11-21 00:31:47,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:47,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:31:47,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:31:47,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:31:47,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:47,134 INFO L87 Difference]: Start difference. First operand has 2040 states, 1229 states have (on average 1.3108218063466233) internal successors, (1611), 1231 states have internal predecessors, (1611), 695 states have call successors, (695), 116 states have call predecessors, (695), 115 states have return successors, (687), 687 states have call predecessors, (687), 687 states have call successors, (687) Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 00:31:51,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:54,186 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:56,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:31:57,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:57,330 INFO L93 Difference]: Finished difference Result 5900 states and 8931 transitions. [2021-11-21 00:31:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:31:57,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 407 [2021-11-21 00:31:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:57,412 INFO L225 Difference]: With dead ends: 5900 [2021-11-21 00:31:57,412 INFO L226 Difference]: Without dead ends: 3870 [2021-11-21 00:31:57,445 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 [2021-11-21 00:31:57,453 INFO L933 BasicCegarLoop]: 3191 mSDtfsCounter, 2767 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2774 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:57,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2774 Valid, 5708 Invalid, 927 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 911 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2021-11-21 00:31:57,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3870 states. [2021-11-21 00:31:57,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3870 to 3866. [2021-11-21 00:31:57,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 2367 states have (on average 1.3067173637515843) internal successors, (3093), 2371 states have internal predecessors, (3093), 1272 states have call successors, (1272), 226 states have call predecessors, (1272), 226 states have return successors, (1279), 1270 states have call predecessors, (1279), 1272 states have call successors, (1279) [2021-11-21 00:31:57,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 5644 transitions. [2021-11-21 00:31:57,976 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 5644 transitions. Word has length 407 [2021-11-21 00:31:57,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:57,981 INFO L470 AbstractCegarLoop]: Abstraction has 3866 states and 5644 transitions. [2021-11-21 00:31:57,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 00:31:57,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 5644 transitions. [2021-11-21 00:31:58,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-21 00:31:58,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:58,012 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:58,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:31:58,014 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:31:58,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:58,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1432263591, now seen corresponding path program 1 times [2021-11-21 00:31:58,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:31:58,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667355228] [2021-11-21 00:31:58,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:58,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:31:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2021-11-21 00:31:58,711 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:31:58,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667355228] [2021-11-21 00:31:58,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667355228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:58,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:58,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:31:58,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690559128] [2021-11-21 00:31:58,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:58,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:31:58,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:31:58,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:31:58,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:58,718 INFO L87 Difference]: Start difference. First operand 3866 states and 5644 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 00:32:03,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:06,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:08,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:09,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:32:09,241 INFO L93 Difference]: Finished difference Result 11346 states and 16551 transitions. [2021-11-21 00:32:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:32:09,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 408 [2021-11-21 00:32:09,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:32:09,328 INFO L225 Difference]: With dead ends: 11346 [2021-11-21 00:32:09,328 INFO L226 Difference]: Without dead ends: 7553 [2021-11-21 00:32:09,355 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 [2021-11-21 00:32:09,357 INFO L933 BasicCegarLoop]: 3148 mSDtfsCounter, 2704 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 5605 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:32:09,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2711 Valid, 5605 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 921 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2021-11-21 00:32:09,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7553 states. [2021-11-21 00:32:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7553 to 7549. [2021-11-21 00:32:09,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7549 states, 4640 states have (on average 1.3060344827586208) internal successors, (6060), 4650 states have internal predecessors, (6060), 2456 states have call successors, (2456), 452 states have call predecessors, (2456), 452 states have return successors, (2477), 2450 states have call predecessors, (2477), 2456 states have call successors, (2477) [2021-11-21 00:32:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7549 states to 7549 states and 10993 transitions. [2021-11-21 00:32:09,940 INFO L78 Accepts]: Start accepts. Automaton has 7549 states and 10993 transitions. Word has length 408 [2021-11-21 00:32:09,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:32:09,941 INFO L470 AbstractCegarLoop]: Abstraction has 7549 states and 10993 transitions. [2021-11-21 00:32:09,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 00:32:09,942 INFO L276 IsEmpty]: Start isEmpty. Operand 7549 states and 10993 transitions. [2021-11-21 00:32:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2021-11-21 00:32:09,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:32:09,960 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:32:09,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:32:09,961 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:32:09,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:32:09,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1554649114, now seen corresponding path program 1 times [2021-11-21 00:32:09,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:32:09,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136348121] [2021-11-21 00:32:09,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:32:09,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:32:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:32:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2021-11-21 00:32:10,447 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:32:10,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136348121] [2021-11-21 00:32:10,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136348121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:32:10,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:32:10,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:32:10,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406068807] [2021-11-21 00:32:10,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:32:10,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:32:10,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:32:10,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:32:10,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:32:10,451 INFO L87 Difference]: Start difference. First operand 7549 states and 10993 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 00:32:15,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:17,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:19,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:20,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:32:20,904 INFO L93 Difference]: Finished difference Result 22109 states and 32177 transitions. [2021-11-21 00:32:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:32:20,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 406 [2021-11-21 00:32:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:32:21,086 INFO L225 Difference]: With dead ends: 22109 [2021-11-21 00:32:21,086 INFO L226 Difference]: Without dead ends: 14633 [2021-11-21 00:32:21,141 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 [2021-11-21 00:32:21,147 INFO L933 BasicCegarLoop]: 3304 mSDtfsCounter, 2706 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2713 SdHoareTripleChecker+Valid, 5761 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:32:21,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2713 Valid, 5761 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 969 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2021-11-21 00:32:21,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14633 states. [2021-11-21 00:32:22,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14633 to 14629. [2021-11-21 00:32:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14629 states, 9020 states have (on average 1.3041019955654103) internal successors, (11763), 9042 states have internal predecessors, (11763), 4719 states have call successors, (4719), 889 states have call predecessors, (4719), 889 states have return successors, (4768), 4705 states have call predecessors, (4768), 4719 states have call successors, (4768) [2021-11-21 00:32:22,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14629 states to 14629 states and 21250 transitions. [2021-11-21 00:32:22,567 INFO L78 Accepts]: Start accepts. Automaton has 14629 states and 21250 transitions. Word has length 406 [2021-11-21 00:32:22,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:32:22,569 INFO L470 AbstractCegarLoop]: Abstraction has 14629 states and 21250 transitions. [2021-11-21 00:32:22,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 00:32:22,570 INFO L276 IsEmpty]: Start isEmpty. Operand 14629 states and 21250 transitions. [2021-11-21 00:32:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-21 00:32:22,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:32:22,593 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 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] [2021-11-21 00:32:22,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:32:22,593 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:32:22,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:32:22,594 INFO L85 PathProgramCache]: Analyzing trace with hash -925165569, now seen corresponding path program 1 times [2021-11-21 00:32:22,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:32:22,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322987621] [2021-11-21 00:32:22,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:32:22,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:32:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:32:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2021-11-21 00:32:23,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:32:23,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322987621] [2021-11-21 00:32:23,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322987621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:32:23,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:32:23,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:32:23,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451338837] [2021-11-21 00:32:23,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:32:23,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:32:23,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:32:23,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:32:23,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:32:23,197 INFO L87 Difference]: Start difference. First operand 14629 states and 21250 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 00:32:28,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:30,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:32,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:32:33,603 INFO L93 Difference]: Finished difference Result 37116 states and 53651 transitions. [2021-11-21 00:32:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:32:33,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 412 [2021-11-21 00:32:33,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:32:33,800 INFO L225 Difference]: With dead ends: 37116 [2021-11-21 00:32:33,800 INFO L226 Difference]: Without dead ends: 22560 [2021-11-21 00:32:33,881 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 [2021-11-21 00:32:33,882 INFO L933 BasicCegarLoop]: 2979 mSDtfsCounter, 1564 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 5406 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:32:33,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 5406 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 962 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2021-11-21 00:32:33,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22560 states. [2021-11-21 00:32:35,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22560 to 22542. [2021-11-21 00:32:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22542 states, 13988 states have (on average 1.305404632542179) internal successors, (18260), 14040 states have internal predecessors, (18260), 7028 states have call successors, (7028), 1525 states have call predecessors, (7028), 1525 states have return successors, (7133), 6984 states have call predecessors, (7133), 7028 states have call successors, (7133) [2021-11-21 00:32:35,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22542 states to 22542 states and 32421 transitions. [2021-11-21 00:32:35,743 INFO L78 Accepts]: Start accepts. Automaton has 22542 states and 32421 transitions. Word has length 412 [2021-11-21 00:32:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:32:35,746 INFO L470 AbstractCegarLoop]: Abstraction has 22542 states and 32421 transitions. [2021-11-21 00:32:35,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 00:32:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand 22542 states and 32421 transitions. [2021-11-21 00:32:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-11-21 00:32:35,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:32:35,770 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 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] [2021-11-21 00:32:35,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:32:35,771 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:32:35,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:32:35,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1544989785, now seen corresponding path program 1 times [2021-11-21 00:32:35,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:32:35,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786002661] [2021-11-21 00:32:35,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:32:35,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:32:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:32:36,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5116 trivial. 0 not checked. [2021-11-21 00:32:36,491 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:32:36,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786002661] [2021-11-21 00:32:36,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786002661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:32:36,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:32:36,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:32:36,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665869470] [2021-11-21 00:32:36,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:32:36,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:32:36,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:32:36,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:32:36,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:32:36,494 INFO L87 Difference]: Start difference. First operand 22542 states and 32421 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-21 00:32:40,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:42,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:44,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:46,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:32:46,682 INFO L93 Difference]: Finished difference Result 65225 states and 93755 transitions. [2021-11-21 00:32:46,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:32:46,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 425 [2021-11-21 00:32:46,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:32:46,965 INFO L225 Difference]: With dead ends: 65225 [2021-11-21 00:32:46,966 INFO L226 Difference]: Without dead ends: 42756 [2021-11-21 00:32:47,066 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 [2021-11-21 00:32:47,068 INFO L933 BasicCegarLoop]: 3174 mSDtfsCounter, 2653 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 5635 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:32:47,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2660 Valid, 5635 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 923 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2021-11-21 00:32:47,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42756 states. [2021-11-21 00:32:49,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42756 to 42722. [2021-11-21 00:32:50,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42722 states, 26587 states have (on average 1.3016511829089406) internal successors, (34607), 26723 states have internal predecessors, (34607), 13233 states have call successors, (13233), 2901 states have call predecessors, (13233), 2901 states have return successors, (13394), 13113 states have call predecessors, (13394), 13233 states have call successors, (13394) [2021-11-21 00:32:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42722 states to 42722 states and 61234 transitions. [2021-11-21 00:32:50,604 INFO L78 Accepts]: Start accepts. Automaton has 42722 states and 61234 transitions. Word has length 425 [2021-11-21 00:32:50,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:32:50,617 INFO L470 AbstractCegarLoop]: Abstraction has 42722 states and 61234 transitions. [2021-11-21 00:32:50,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-21 00:32:50,618 INFO L276 IsEmpty]: Start isEmpty. Operand 42722 states and 61234 transitions. [2021-11-21 00:32:50,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-11-21 00:32:50,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:32:50,687 INFO L514 BasicCegarLoop]: trace histogram [38, 36, 36, 36, 36, 36, 36, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:32:50,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:32:50,688 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:32:50,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:32:50,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1257626620, now seen corresponding path program 1 times [2021-11-21 00:32:50,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:32:50,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048824456] [2021-11-21 00:32:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:32:50,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:32:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:32:51,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5195 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5192 trivial. 0 not checked. [2021-11-21 00:32:51,227 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:32:51,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048824456] [2021-11-21 00:32:51,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048824456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:32:51,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:32:51,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:32:51,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608288607] [2021-11-21 00:32:51,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:32:51,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:32:51,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:32:51,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:32:51,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:32:51,231 INFO L87 Difference]: Start difference. First operand 42722 states and 61234 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-21 00:32:56,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:32:58,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:00,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:01,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:33:01,988 INFO L93 Difference]: Finished difference Result 86463 states and 123674 transitions. [2021-11-21 00:33:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:33:01,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 427 [2021-11-21 00:33:01,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:33:02,317 INFO L225 Difference]: With dead ends: 86463 [2021-11-21 00:33:02,317 INFO L226 Difference]: Without dead ends: 43814 [2021-11-21 00:33:02,745 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 [2021-11-21 00:33:02,746 INFO L933 BasicCegarLoop]: 2718 mSDtfsCounter, 886 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:33:02,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 5162 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 914 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2021-11-21 00:33:02,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43814 states. [2021-11-21 00:33:05,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43814 to 43812. [2021-11-21 00:33:05,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43812 states, 27299 states have (on average 1.29916846770944) internal successors, (35466), 27437 states have internal predecessors, (35466), 13447 states have call successors, (13447), 3065 states have call predecessors, (13447), 3065 states have return successors, (13615), 13325 states have call predecessors, (13615), 13447 states have call successors, (13615) [2021-11-21 00:33:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43812 states to 43812 states and 62528 transitions. [2021-11-21 00:33:05,993 INFO L78 Accepts]: Start accepts. Automaton has 43812 states and 62528 transitions. Word has length 427 [2021-11-21 00:33:05,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:33:05,994 INFO L470 AbstractCegarLoop]: Abstraction has 43812 states and 62528 transitions. [2021-11-21 00:33:05,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-21 00:33:05,995 INFO L276 IsEmpty]: Start isEmpty. Operand 43812 states and 62528 transitions. [2021-11-21 00:33:06,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-21 00:33:06,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:33:06,009 INFO L514 BasicCegarLoop]: trace histogram [38, 36, 36, 36, 36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:33:06,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:33:06,010 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:33:06,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:33:06,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1251694745, now seen corresponding path program 1 times [2021-11-21 00:33:06,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:33:06,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933008985] [2021-11-21 00:33:06,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:33:06,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:33:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:33:06,487 INFO L134 CoverageAnalysis]: Checked inductivity of 5201 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5190 trivial. 0 not checked. [2021-11-21 00:33:06,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:33:06,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933008985] [2021-11-21 00:33:06,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933008985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:33:06,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:33:06,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:33:06,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542763439] [2021-11-21 00:33:06,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:33:06,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:33:06,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:33:06,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:33:06,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:33:06,491 INFO L87 Difference]: Start difference. First operand 43812 states and 62528 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-21 00:33:11,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:14,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:16,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:18,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:33:18,265 INFO L93 Difference]: Finished difference Result 107192 states and 152925 transitions. [2021-11-21 00:33:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:33:18,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 447 [2021-11-21 00:33:18,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:33:19,074 INFO L225 Difference]: With dead ends: 107192 [2021-11-21 00:33:19,074 INFO L226 Difference]: Without dead ends: 63453 [2021-11-21 00:33:19,420 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 [2021-11-21 00:33:19,422 INFO L933 BasicCegarLoop]: 4589 mSDtfsCounter, 2649 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:33:19,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2656 Valid, 7072 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1231 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2021-11-21 00:33:19,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63453 states. [2021-11-21 00:33:22,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63453 to 63435. [2021-11-21 00:33:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63435 states, 39538 states have (on average 1.2975871313672922) internal successors, (51304), 39742 states have internal predecessors, (51304), 19467 states have call successors, (19467), 4429 states have call predecessors, (19467), 4429 states have return successors, (19684), 19287 states have call predecessors, (19684), 19467 states have call successors, (19684) [2021-11-21 00:33:22,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63435 states to 63435 states and 90455 transitions. [2021-11-21 00:33:22,893 INFO L78 Accepts]: Start accepts. Automaton has 63435 states and 90455 transitions. Word has length 447 [2021-11-21 00:33:22,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:33:22,894 INFO L470 AbstractCegarLoop]: Abstraction has 63435 states and 90455 transitions. [2021-11-21 00:33:22,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-21 00:33:22,894 INFO L276 IsEmpty]: Start isEmpty. Operand 63435 states and 90455 transitions. [2021-11-21 00:33:22,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-21 00:33:22,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:33:22,926 INFO L514 BasicCegarLoop]: trace histogram [41, 36, 36, 36, 36, 36, 36, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:33:22,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:33:22,926 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:33:22,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:33:22,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1915307402, now seen corresponding path program 1 times [2021-11-21 00:33:22,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:33:22,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437370216] [2021-11-21 00:33:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:33:22,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:33:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:33:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5464 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5457 trivial. 0 not checked. [2021-11-21 00:33:23,391 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:33:23,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437370216] [2021-11-21 00:33:23,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437370216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:33:23,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:33:23,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:33:23,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588896728] [2021-11-21 00:33:23,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:33:23,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:33:23,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:33:23,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:33:23,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:33:23,394 INFO L87 Difference]: Start difference. First operand 63435 states and 90455 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, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-21 00:33:28,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:32,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:34,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:33:36,163 INFO L93 Difference]: Finished difference Result 156101 states and 222628 transitions. [2021-11-21 00:33:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:33:36,164 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, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 476 [2021-11-21 00:33:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:33:36,725 INFO L225 Difference]: With dead ends: 156101 [2021-11-21 00:33:36,725 INFO L226 Difference]: Without dead ends: 92896 [2021-11-21 00:33:37,317 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 [2021-11-21 00:33:37,317 INFO L933 BasicCegarLoop]: 4299 mSDtfsCounter, 2716 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 6742 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:33:37,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2723 Valid, 6742 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1181 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2021-11-21 00:33:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92896 states. [2021-11-21 00:33:41,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92896 to 92882. [2021-11-21 00:33:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92882 states, 57952 states have (on average 1.296762838210933) internal successors, (75150), 58264 states have internal predecessors, (75150), 28411 states have call successors, (28411), 6518 states have call predecessors, (28411), 6518 states have return successors, (28684), 28135 states have call predecessors, (28684), 28411 states have call successors, (28684) [2021-11-21 00:33:42,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92882 states to 92882 states and 132245 transitions. [2021-11-21 00:33:42,124 INFO L78 Accepts]: Start accepts. Automaton has 92882 states and 132245 transitions. Word has length 476 [2021-11-21 00:33:42,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:33:42,126 INFO L470 AbstractCegarLoop]: Abstraction has 92882 states and 132245 transitions. [2021-11-21 00:33:42,127 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, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-21 00:33:42,127 INFO L276 IsEmpty]: Start isEmpty. Operand 92882 states and 132245 transitions. [2021-11-21 00:33:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2021-11-21 00:33:42,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:33:42,159 INFO L514 BasicCegarLoop]: trace histogram [41, 36, 36, 36, 36, 36, 36, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:33:42,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:33:42,159 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:33:42,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:33:42,160 INFO L85 PathProgramCache]: Analyzing trace with hash 900429412, now seen corresponding path program 1 times [2021-11-21 00:33:42,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:33:42,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382548506] [2021-11-21 00:33:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:33:42,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:33:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:33:42,676 INFO L134 CoverageAnalysis]: Checked inductivity of 5464 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5457 trivial. 0 not checked. [2021-11-21 00:33:42,677 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:33:42,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382548506] [2021-11-21 00:33:42,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382548506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:33:42,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:33:42,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:33:42,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016386846] [2021-11-21 00:33:42,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:33:42,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:33:42,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:33:42,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:33:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:33:42,681 INFO L87 Difference]: Start difference. First operand 92882 states and 132245 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-21 00:33:47,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:51,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:53,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:33:57,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:33:57,629 INFO L93 Difference]: Finished difference Result 228566 states and 325624 transitions. [2021-11-21 00:33:57,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:33:57,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 477 [2021-11-21 00:33:57,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:33:58,278 INFO L225 Difference]: With dead ends: 228566 [2021-11-21 00:33:58,278 INFO L226 Difference]: Without dead ends: 135914 [2021-11-21 00:33:58,991 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 [2021-11-21 00:33:58,991 INFO L933 BasicCegarLoop]: 4377 mSDtfsCounter, 2715 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 6820 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:33:58,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2722 Valid, 6820 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1213 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2021-11-21 00:33:59,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135914 states. [2021-11-21 00:34:04,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135914 to 135900. [2021-11-21 00:34:05,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135900 states, 84902 states have (on average 1.2960354290829428) internal successors, (110036), 85376 states have internal predecessors, (110036), 41447 states have call successors, (41447), 9550 states have call predecessors, (41447), 9550 states have return successors, (41860), 41027 states have call predecessors, (41860), 41447 states have call successors, (41860) [2021-11-21 00:34:06,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135900 states to 135900 states and 193343 transitions. [2021-11-21 00:34:06,404 INFO L78 Accepts]: Start accepts. Automaton has 135900 states and 193343 transitions. Word has length 477 [2021-11-21 00:34:06,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:34:06,405 INFO L470 AbstractCegarLoop]: Abstraction has 135900 states and 193343 transitions. [2021-11-21 00:34:06,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-21 00:34:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 135900 states and 193343 transitions. [2021-11-21 00:34:06,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-21 00:34:06,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:34:06,428 INFO L514 BasicCegarLoop]: trace histogram [41, 36, 36, 36, 36, 36, 36, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:34:06,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 00:34:06,428 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:34:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:34:06,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1762101737, now seen corresponding path program 1 times [2021-11-21 00:34:06,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:34:06,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166846857] [2021-11-21 00:34:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:34:06,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:34:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:34:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5464 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5457 trivial. 0 not checked. [2021-11-21 00:34:06,874 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:34:06,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166846857] [2021-11-21 00:34:06,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166846857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:34:06,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:34:06,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:34:06,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812886423] [2021-11-21 00:34:06,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:34:06,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:34:06,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:34:06,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:34:06,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:34:06,877 INFO L87 Difference]: Start difference. First operand 135900 states and 193343 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-21 00:34:10,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:34:14,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:34:17,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []