./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-ethernet-3com-3c59x.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_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/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_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/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_5a78018f-9082-46f8-bb18-6b8c243b9de9/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 ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:29:16,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:29:16,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:29:16,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:29:16,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:29:16,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:29:16,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:29:16,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:29:16,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:29:16,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:29:16,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:29:16,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:29:16,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:29:16,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:29:16,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:29:16,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:29:16,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:29:16,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:29:16,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:29:16,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:29:16,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:29:16,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:29:16,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:29:16,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:29:16,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:29:16,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:29:16,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:29:16,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:29:16,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:29:16,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:29:16,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:29:16,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:29:16,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:29:16,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:29:16,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:29:16,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:29:16,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:29:16,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:29:16,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:29:16,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:29:16,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:29:16,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:29:16,768 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:29:16,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:29:16,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:29:16,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:29:16,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:29:16,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:29:16,771 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:29:16,772 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:29:16,772 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:29:16,772 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:29:16,774 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:29:16,774 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:29:16,774 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:29:16,775 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:29:16,775 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:29:16,775 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:29:16,776 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:29:16,776 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:29:16,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:29:16,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:29:16,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:29:16,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:29:16,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:29:16,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:29:16,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:29:16,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:29:16,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:29:16,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:29:16,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:29:16,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:29:16,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:29:16,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:29:16,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:29:16,784 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:29:16,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:29:16,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:29:16,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:29:16,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:29:16,785 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_5a78018f-9082-46f8-bb18-6b8c243b9de9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 [2021-11-21 01:29:17,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:29:17,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:29:17,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:29:17,249 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:29:17,250 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:29:17,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-21 01:29:17,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/data/04cd1d359/82bcbc9029d6489886c5dcf8d3fe81ea/FLAG5a3d5b66c [2021-11-21 01:29:18,739 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:29:18,740 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-21 01:29:18,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/data/04cd1d359/82bcbc9029d6489886c5dcf8d3fe81ea/FLAG5a3d5b66c [2021-11-21 01:29:19,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/data/04cd1d359/82bcbc9029d6489886c5dcf8d3fe81ea [2021-11-21 01:29:19,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:29:19,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:29:19,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:29:19,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:29:19,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:29:19,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:29:19" (1/1) ... [2021-11-21 01:29:19,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aee7118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:19, skipping insertion in model container [2021-11-21 01:29:19,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:29:19" (1/1) ... [2021-11-21 01:29:19,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:29:19,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:29:24,968 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_5a78018f-9082-46f8-bb18-6b8c243b9de9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2021-11-21 01:29:24,972 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_5a78018f-9082-46f8-bb18-6b8c243b9de9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2021-11-21 01:29:25,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:29:25,079 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:29:25,732 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_5a78018f-9082-46f8-bb18-6b8c243b9de9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2021-11-21 01:29:25,732 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_5a78018f-9082-46f8-bb18-6b8c243b9de9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2021-11-21 01:29:25,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:29:26,180 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:29:26,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26 WrapperNode [2021-11-21 01:29:26,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:29:26,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:29:26,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:29:26,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:29:26,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:26,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:26,818 INFO L137 Inliner]: procedures = 567, calls = 4460, calls flagged for inlining = 273, calls inlined = 252, statements flattened = 9108 [2021-11-21 01:29:26,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:29:26,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:29:26,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:29:26,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:29:26,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:26,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:26,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:26,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:27,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:27,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:27,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:27,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:29:27,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:29:27,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:29:27,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:29:27,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (1/1) ... [2021-11-21 01:29:27,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:29:27,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:29:27,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:29:27,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a78018f-9082-46f8-bb18-6b8c243b9de9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:29:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 01:29:27,551 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 01:29:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:29:27,551 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:29:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 01:29:27,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 01:29:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-21 01:29:27,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-21 01:29:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-11-21 01:29:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-11-21 01:29:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 01:29:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 01:29:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2021-11-21 01:29:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2021-11-21 01:29:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:29:27,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:29:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 01:29:27,554 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 01:29:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-11-21 01:29:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-11-21 01:29:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-11-21 01:29:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-11-21 01:29:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-21 01:29:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-21 01:29:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-11-21 01:29:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-11-21 01:29:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:29:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:29:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-21 01:29:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-21 01:29:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-21 01:29:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-21 01:29:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-11-21 01:29:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-11-21 01:29:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-21 01:29:27,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-21 01:29:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 01:29:27,560 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 01:29:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:29:27,560 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:29:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-11-21 01:29:27,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-11-21 01:29:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2021-11-21 01:29:27,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2021-11-21 01:29:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-11-21 01:29:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-11-21 01:29:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:29:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:29:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:29:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:29:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:29:27,565 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:29:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-21 01:29:27,565 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-21 01:29:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 01:29:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 01:29:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-21 01:29:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-21 01:29:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:29:27,567 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:29:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:29:27,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:29:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-21 01:29:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-21 01:29:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 01:29:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 01:29:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 01:29:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 01:29:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:29:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-11-21 01:29:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-11-21 01:29:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-21 01:29:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-21 01:29:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:29:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:29:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2021-11-21 01:29:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2021-11-21 01:29:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 01:29:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 01:29:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2021-11-21 01:29:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2021-11-21 01:29:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:29:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-11-21 01:29:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-11-21 01:29:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 01:29:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 01:29:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-11-21 01:29:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-11-21 01:29:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:29:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:29:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-21 01:29:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-21 01:29:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:29:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:29:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:29:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2021-11-21 01:29:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2021-11-21 01:29:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:29:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:29:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:29:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-11-21 01:29:27,580 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-11-21 01:29:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-21 01:29:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-21 01:29:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:29:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:29:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:29:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:29:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:29:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:29:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 01:29:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 01:29:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:29:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:29:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 01:29:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 01:29:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-11-21 01:29:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-11-21 01:29:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2021-11-21 01:29:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2021-11-21 01:29:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-21 01:29:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-21 01:29:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 01:29:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 01:29:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-11-21 01:29:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-11-21 01:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:29:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-11-21 01:29:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-11-21 01:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 01:29:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 01:29:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-11-21 01:29:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-11-21 01:29:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 01:29:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 01:29:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 01:29:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 01:29:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-21 01:29:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-21 01:29:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 01:29:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 01:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:29:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:29:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:29:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-21 01:29:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-21 01:29:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:29:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:29:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-21 01:29:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-21 01:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:29:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 01:29:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 01:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 01:29:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 01:29:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-11-21 01:29:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-11-21 01:29:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:29:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:29:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-11-21 01:29:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-11-21 01:29:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-21 01:29:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-21 01:29:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:29:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:29:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-11-21 01:29:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-11-21 01:29:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-11-21 01:29:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-11-21 01:29:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 01:29:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 01:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-11-21 01:29:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-11-21 01:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:29:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 01:29:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 01:29:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-11-21 01:29:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-11-21 01:29:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 01:29:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 01:29:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-11-21 01:29:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-11-21 01:29:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-11-21 01:29:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-11-21 01:29:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-21 01:29:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-21 01:29:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-11-21 01:29:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-11-21 01:29:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-21 01:29:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-21 01:29:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-11-21 01:29:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-11-21 01:29:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-11-21 01:29:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-11-21 01:29:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-21 01:29:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-21 01:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:29:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-11-21 01:29:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-11-21 01:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:29:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:29:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:29:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:29:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:29:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-11-21 01:29:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-11-21 01:29:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 01:29:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 01:29:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 01:29:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 01:29:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-21 01:29:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-21 01:29:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:29:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:29:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-21 01:29:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-21 01:29:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:29:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2021-11-21 01:29:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2021-11-21 01:29:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-21 01:29:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-21 01:29:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:29:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:29:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:29:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-11-21 01:29:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-11-21 01:29:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-11-21 01:29:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-11-21 01:29:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:29:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:29:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:29:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-21 01:29:27,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-21 01:29:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:29:27,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:29:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:29:27,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:29:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 01:29:27,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 01:29:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-21 01:29:27,630 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-21 01:29:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-11-21 01:29:27,630 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-11-21 01:29:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-11-21 01:29:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-11-21 01:29:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-21 01:29:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-21 01:29:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 01:29:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 01:29:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-11-21 01:29:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-11-21 01:29:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2021-11-21 01:29:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2021-11-21 01:29:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 01:29:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 01:29:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:29:27,633 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:29:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 01:29:27,633 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 01:29:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2021-11-21 01:29:27,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2021-11-21 01:29:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:29:27,634 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:29:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-11-21 01:29:27,634 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-11-21 01:29:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:29:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-11-21 01:29:27,635 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-11-21 01:29:27,635 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-21 01:29:27,635 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-21 01:29:27,635 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-21 01:29:27,635 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-21 01:29:27,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:29:27,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:29:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-11-21 01:29:27,636 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-11-21 01:29:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-11-21 01:29:27,636 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-11-21 01:29:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-21 01:29:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-21 01:29:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-11-21 01:29:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-11-21 01:29:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 01:29:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 01:29:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-11-21 01:29:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-11-21 01:29:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-11-21 01:29:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-11-21 01:29:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:29:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:29:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 01:29:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 01:29:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-21 01:29:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-21 01:29:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:29:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:29:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2021-11-21 01:29:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2021-11-21 01:29:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 01:29:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 01:29:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2021-11-21 01:29:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2021-11-21 01:29:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2021-11-21 01:29:27,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2021-11-21 01:29:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:29:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:29:27,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:29:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-21 01:29:27,642 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-21 01:29:29,124 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:29:29,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:29:30,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:29:39,205 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 01:29:39,373 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:29:43,139 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:29:43,139 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:29:43,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:29:43 BoogieIcfgContainer [2021-11-21 01:29:43,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:29:43,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:29:43,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:29:43,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:29:43,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:29:19" (1/3) ... [2021-11-21 01:29:43,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21565bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:29:43, skipping insertion in model container [2021-11-21 01:29:43,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:29:26" (2/3) ... [2021-11-21 01:29:43,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21565bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:29:43, skipping insertion in model container [2021-11-21 01:29:43,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:29:43" (3/3) ... [2021-11-21 01:29:43,156 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-21 01:29:43,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:29:43,163 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:29:43,241 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:29:43,250 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 01:29:43,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:29:43,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) [2021-11-21 01:29:43,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-21 01:29:43,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:29:43,384 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:29:43,384 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:29:43,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:29:43,390 INFO L85 PathProgramCache]: Analyzing trace with hash 316822121, now seen corresponding path program 1 times [2021-11-21 01:29:43,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:29:43,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172533305] [2021-11-21 01:29:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:43,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:29:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:29:44,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-11-21 01:29:44,743 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:29:44,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172533305] [2021-11-21 01:29:44,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172533305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:29:44,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:29:44,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:29:44,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978699737] [2021-11-21 01:29:44,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:29:44,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:29:44,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:29:44,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:29:44,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:29:44,845 INFO L87 Difference]: Start difference. First operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-21 01:29:48,867 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 01:29:51,623 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 01:29:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:29:53,606 INFO L93 Difference]: Finished difference Result 6493 states and 9664 transitions. [2021-11-21 01:29:53,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:29:53,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 222 [2021-11-21 01:29:53,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:29:53,679 INFO L225 Difference]: With dead ends: 6493 [2021-11-21 01:29:53,680 INFO L226 Difference]: Without dead ends: 4156 [2021-11-21 01:29:53,708 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 01:29:53,712 INFO L933 BasicCegarLoop]: 3586 mSDtfsCounter, 2911 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 6441 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:29:53,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2912 Valid, 6441 Invalid, 981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 962 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2021-11-21 01:29:53,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2021-11-21 01:29:54,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 4152. [2021-11-21 01:29:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 2442 states have (on average 1.3255528255528255) internal successors, (3237), 2572 states have internal predecessors, (3237), 1421 states have call successors, (1421), 288 states have call predecessors, (1421), 288 states have return successors, (1422), 1390 states have call predecessors, (1422), 1421 states have call successors, (1422) [2021-11-21 01:29:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 6080 transitions. [2021-11-21 01:29:54,440 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 6080 transitions. Word has length 222 [2021-11-21 01:29:54,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:29:54,446 INFO L470 AbstractCegarLoop]: Abstraction has 4152 states and 6080 transitions. [2021-11-21 01:29:54,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-21 01:29:54,449 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 6080 transitions. [2021-11-21 01:29:54,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-21 01:29:54,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:29:54,475 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:29:54,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:29:54,476 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:29:54,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:29:54,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1946518292, now seen corresponding path program 1 times [2021-11-21 01:29:54,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:29:54,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649506805] [2021-11-21 01:29:54,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:54,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:29:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:29:55,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-11-21 01:29:55,163 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:29:55,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649506805] [2021-11-21 01:29:55,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649506805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:29:55,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:29:55,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:29:55,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295497570] [2021-11-21 01:29:55,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:29:55,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:29:55,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:29:55,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:29:55,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:29:55,177 INFO L87 Difference]: Start difference. First operand 4152 states and 6080 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-21 01:29:59,591 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 01:30:02,163 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 01:30:04,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:30:04,055 INFO L93 Difference]: Finished difference Result 11938 states and 17473 transitions. [2021-11-21 01:30:04,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:30:04,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 223 [2021-11-21 01:30:04,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:30:04,173 INFO L225 Difference]: With dead ends: 11938 [2021-11-21 01:30:04,174 INFO L226 Difference]: Without dead ends: 7821 [2021-11-21 01:30:04,216 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 01:30:04,219 INFO L933 BasicCegarLoop]: 4033 mSDtfsCounter, 2764 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 6775 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:30:04,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2766 Valid, 6775 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1085 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-11-21 01:30:04,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2021-11-21 01:30:05,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7814. [2021-11-21 01:30:05,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7814 states, 4583 states have (on average 1.3176958324241763) internal successors, (6039), 4838 states have internal predecessors, (6039), 2670 states have call successors, (2670), 560 states have call predecessors, (2670), 560 states have return successors, (2674), 2607 states have call predecessors, (2674), 2670 states have call successors, (2674) [2021-11-21 01:30:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7814 states to 7814 states and 11383 transitions. [2021-11-21 01:30:05,218 INFO L78 Accepts]: Start accepts. Automaton has 7814 states and 11383 transitions. Word has length 223 [2021-11-21 01:30:05,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:30:05,219 INFO L470 AbstractCegarLoop]: Abstraction has 7814 states and 11383 transitions. [2021-11-21 01:30:05,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-21 01:30:05,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7814 states and 11383 transitions. [2021-11-21 01:30:05,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-21 01:30:05,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:30:05,239 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2021-11-21 01:30:05,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:30:05,239 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:30:05,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:30:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash -888132008, now seen corresponding path program 1 times [2021-11-21 01:30:05,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:30:05,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589276828] [2021-11-21 01:30:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:05,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:30:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:30:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2021-11-21 01:30:05,734 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:30:05,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589276828] [2021-11-21 01:30:05,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589276828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:30:05,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:30:05,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:30:05,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389305576] [2021-11-21 01:30:05,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:30:05,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:30:05,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:30:05,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:30:05,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:30:05,746 INFO L87 Difference]: Start difference. First operand 7814 states and 11383 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 01:30:08,862 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 01:30:11,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:30:13,583 INFO L93 Difference]: Finished difference Result 22696 states and 33154 transitions. [2021-11-21 01:30:13,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:30:13,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 236 [2021-11-21 01:30:13,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:30:13,766 INFO L225 Difference]: With dead ends: 22696 [2021-11-21 01:30:13,767 INFO L226 Difference]: Without dead ends: 14917 [2021-11-21 01:30:13,833 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 01:30:13,838 INFO L933 BasicCegarLoop]: 3528 mSDtfsCounter, 2856 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 6283 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:30:13,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2858 Valid, 6283 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 910 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:30:13,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14917 states. [2021-11-21 01:30:14,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14917 to 14906. [2021-11-21 01:30:15,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14906 states, 8734 states have (on average 1.315548431417449) internal successors, (11490), 9220 states have internal predecessors, (11490), 5074 states have call successors, (5074), 1105 states have call predecessors, (5074), 1097 states have return successors, (5245), 4924 states have call predecessors, (5245), 5074 states have call successors, (5245) [2021-11-21 01:30:15,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14906 states to 14906 states and 21809 transitions. [2021-11-21 01:30:15,124 INFO L78 Accepts]: Start accepts. Automaton has 14906 states and 21809 transitions. Word has length 236 [2021-11-21 01:30:15,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:30:15,126 INFO L470 AbstractCegarLoop]: Abstraction has 14906 states and 21809 transitions. [2021-11-21 01:30:15,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 01:30:15,127 INFO L276 IsEmpty]: Start isEmpty. Operand 14906 states and 21809 transitions. [2021-11-21 01:30:15,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-21 01:30:15,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:30:15,145 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 3, 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] [2021-11-21 01:30:15,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:30:15,145 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:30:15,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:30:15,146 INFO L85 PathProgramCache]: Analyzing trace with hash -882869683, now seen corresponding path program 1 times [2021-11-21 01:30:15,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:30:15,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640690850] [2021-11-21 01:30:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:15,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:30:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:30:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2021-11-21 01:30:15,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:30:15,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640690850] [2021-11-21 01:30:15,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640690850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:30:15,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:30:15,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:30:15,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613306642] [2021-11-21 01:30:15,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:30:15,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:30:15,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:30:15,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:30:15,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:30:15,909 INFO L87 Difference]: Start difference. First operand 14906 states and 21809 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 01:30:19,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:22,333 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 01:30:24,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:30:24,467 INFO L93 Difference]: Finished difference Result 43667 states and 63848 transitions. [2021-11-21 01:30:24,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:30:24,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 247 [2021-11-21 01:30:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:30:24,778 INFO L225 Difference]: With dead ends: 43667 [2021-11-21 01:30:24,778 INFO L226 Difference]: Without dead ends: 28796 [2021-11-21 01:30:24,871 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 01:30:24,872 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 2878 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 6880 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:30:24,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2880 Valid, 6880 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1081 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2021-11-21 01:30:24,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28796 states. [2021-11-21 01:30:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28796 to 28777. [2021-11-21 01:30:27,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28777 states, 16871 states have (on average 1.312251793017604) internal successors, (22139), 17835 states have internal predecessors, (22139), 9760 states have call successors, (9760), 2161 states have call predecessors, (9760), 2145 states have return successors, (10094), 9455 states have call predecessors, (10094), 9760 states have call successors, (10094) [2021-11-21 01:30:27,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28777 states to 28777 states and 41993 transitions. [2021-11-21 01:30:27,265 INFO L78 Accepts]: Start accepts. Automaton has 28777 states and 41993 transitions. Word has length 247 [2021-11-21 01:30:27,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:30:27,267 INFO L470 AbstractCegarLoop]: Abstraction has 28777 states and 41993 transitions. [2021-11-21 01:30:27,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-21 01:30:27,267 INFO L276 IsEmpty]: Start isEmpty. Operand 28777 states and 41993 transitions. [2021-11-21 01:30:27,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-21 01:30:27,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:30:27,295 INFO L514 BasicCegarLoop]: trace histogram [20, 17, 17, 17, 17, 17, 17, 4, 4, 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] [2021-11-21 01:30:27,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:30:27,296 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:30:27,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:30:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash 412680149, now seen corresponding path program 1 times [2021-11-21 01:30:27,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:30:27,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633956138] [2021-11-21 01:30:27,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:27,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:30:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:30:27,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2021-11-21 01:30:27,954 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:30:27,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633956138] [2021-11-21 01:30:27,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633956138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:30:27,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:30:27,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:30:27,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222381865] [2021-11-21 01:30:27,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:30:27,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:30:27,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:30:27,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:30:27,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:30:27,958 INFO L87 Difference]: Start difference. First operand 28777 states and 41993 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 01:30:31,411 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 01:30:33,797 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 01:30:36,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:30:36,451 INFO L93 Difference]: Finished difference Result 60897 states and 88571 transitions. [2021-11-21 01:30:36,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:30:36,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 262 [2021-11-21 01:30:36,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:30:36,769 INFO L225 Difference]: With dead ends: 60897 [2021-11-21 01:30:36,769 INFO L226 Difference]: Without dead ends: 32155 [2021-11-21 01:30:36,923 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 01:30:36,926 INFO L933 BasicCegarLoop]: 3550 mSDtfsCounter, 2219 mSDsluCounter, 3197 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 6307 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:30:36,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2220 Valid, 6307 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 955 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:30:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32155 states. [2021-11-21 01:30:38,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32155 to 32113. [2021-11-21 01:30:38,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32113 states, 18818 states have (on average 1.3069401636730789) internal successors, (24594), 19870 states have internal predecessors, (24594), 10817 states have call successors, (10817), 2495 states have call predecessors, (10817), 2477 states have return successors, (11170), 10492 states have call predecessors, (11170), 10817 states have call successors, (11170) [2021-11-21 01:30:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32113 states to 32113 states and 46581 transitions. [2021-11-21 01:30:39,119 INFO L78 Accepts]: Start accepts. Automaton has 32113 states and 46581 transitions. Word has length 262 [2021-11-21 01:30:39,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:30:39,121 INFO L470 AbstractCegarLoop]: Abstraction has 32113 states and 46581 transitions. [2021-11-21 01:30:39,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 01:30:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 32113 states and 46581 transitions. [2021-11-21 01:30:39,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-21 01:30:39,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:30:39,149 INFO L514 BasicCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 5, 5, 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] [2021-11-21 01:30:39,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:30:39,150 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:30:39,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:30:39,151 INFO L85 PathProgramCache]: Analyzing trace with hash -399293891, now seen corresponding path program 1 times [2021-11-21 01:30:39,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:30:39,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438429684] [2021-11-21 01:30:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:39,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:30:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:30:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2021-11-21 01:30:39,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:30:39,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438429684] [2021-11-21 01:30:39,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438429684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:30:39,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:30:39,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:30:39,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075684890] [2021-11-21 01:30:39,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:30:39,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:30:39,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:30:39,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:30:39,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:30:39,960 INFO L87 Difference]: Start difference. First operand 32113 states and 46581 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-21 01:30:43,381 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 01:30:46,038 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 01:30:49,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:30:49,634 INFO L93 Difference]: Finished difference Result 75381 states and 109424 transitions. [2021-11-21 01:30:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:30:49,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 271 [2021-11-21 01:30:49,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:30:49,966 INFO L225 Difference]: With dead ends: 75381 [2021-11-21 01:30:49,966 INFO L226 Difference]: Without dead ends: 45918 [2021-11-21 01:30:50,106 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 01:30:50,108 INFO L933 BasicCegarLoop]: 5213 mSDtfsCounter, 2817 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 7970 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:30:50,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2818 Valid, 7970 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1345 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2021-11-21 01:30:50,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45918 states. [2021-11-21 01:30:52,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45918 to 45904. [2021-11-21 01:30:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45904 states, 26907 states have (on average 1.306240011892816) internal successors, (35147), 28407 states have internal predecessors, (35147), 15443 states have call successors, (15443), 3579 states have call predecessors, (15443), 3553 states have return successors, (15942), 14977 states have call predecessors, (15942), 15443 states have call successors, (15942) [2021-11-21 01:30:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45904 states to 45904 states and 66532 transitions. [2021-11-21 01:30:53,315 INFO L78 Accepts]: Start accepts. Automaton has 45904 states and 66532 transitions. Word has length 271 [2021-11-21 01:30:53,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:30:53,316 INFO L470 AbstractCegarLoop]: Abstraction has 45904 states and 66532 transitions. [2021-11-21 01:30:53,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-21 01:30:53,316 INFO L276 IsEmpty]: Start isEmpty. Operand 45904 states and 66532 transitions. [2021-11-21 01:30:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-21 01:30:53,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:30:53,336 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 3, 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] [2021-11-21 01:30:53,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:30:53,336 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:30:53,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:30:53,337 INFO L85 PathProgramCache]: Analyzing trace with hash -49817962, now seen corresponding path program 1 times [2021-11-21 01:30:53,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:30:53,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550323091] [2021-11-21 01:30:53,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:53,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:30:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:30:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2021-11-21 01:30:54,136 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:30:54,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550323091] [2021-11-21 01:30:54,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550323091] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:30:54,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:30:54,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:30:54,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501230811] [2021-11-21 01:30:54,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:30:54,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:30:54,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:30:54,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:30:54,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:30:54,141 INFO L87 Difference]: Start difference. First operand 45904 states and 66532 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-21 01:30:56,449 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 01:30:58,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:31:04,710 INFO L93 Difference]: Finished difference Result 121242 states and 174862 transitions. [2021-11-21 01:31:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:31:04,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 281 [2021-11-21 01:31:04,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:31:05,261 INFO L225 Difference]: With dead ends: 121242 [2021-11-21 01:31:05,263 INFO L226 Difference]: Without dead ends: 75373 [2021-11-21 01:31:05,517 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 01:31:05,519 INFO L933 BasicCegarLoop]: 3573 mSDtfsCounter, 2640 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 6303 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:31:05,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2640 Valid, 6303 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 976 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2021-11-21 01:31:05,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75373 states. [2021-11-21 01:31:08,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75373 to 75339. [2021-11-21 01:31:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75339 states, 44215 states have (on average 1.2940178672396245) internal successors, (57215), 46575 states have internal predecessors, (57215), 25060 states have call successors, (25060), 6139 states have call predecessors, (25060), 6063 states have return successors, (25949), 24259 states have call predecessors, (25949), 25060 states have call successors, (25949) [2021-11-21 01:31:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75339 states to 75339 states and 108224 transitions. [2021-11-21 01:31:09,552 INFO L78 Accepts]: Start accepts. Automaton has 75339 states and 108224 transitions. Word has length 281 [2021-11-21 01:31:09,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:31:09,553 INFO L470 AbstractCegarLoop]: Abstraction has 75339 states and 108224 transitions. [2021-11-21 01:31:09,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-21 01:31:09,553 INFO L276 IsEmpty]: Start isEmpty. Operand 75339 states and 108224 transitions. [2021-11-21 01:31:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-21 01:31:09,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:09,584 INFO L514 BasicCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:31:09,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:31:09,584 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:09,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:09,585 INFO L85 PathProgramCache]: Analyzing trace with hash -55083158, now seen corresponding path program 1 times [2021-11-21 01:31:09,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:31:09,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095022759] [2021-11-21 01:31:09,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:09,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:31:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2021-11-21 01:31:09,998 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:31:09,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095022759] [2021-11-21 01:31:09,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095022759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:31:09,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:31:09,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:31:10,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016122466] [2021-11-21 01:31:10,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:31:10,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:31:10,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:31:10,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:31:10,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:31:10,002 INFO L87 Difference]: Start difference. First operand 75339 states and 108224 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-21 01:31:12,314 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 01:31:14,757 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 01:31:21,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:31:21,082 INFO L93 Difference]: Finished difference Result 185867 states and 267159 transitions. [2021-11-21 01:31:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:31:21,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 302 [2021-11-21 01:31:21,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:31:22,225 INFO L225 Difference]: With dead ends: 185867 [2021-11-21 01:31:22,226 INFO L226 Difference]: Without dead ends: 110667 [2021-11-21 01:31:22,538 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 01:31:22,539 INFO L933 BasicCegarLoop]: 5277 mSDtfsCounter, 2883 mSDsluCounter, 3211 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 8048 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:31:22,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2885 Valid, 8048 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1343 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:31:22,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110667 states. [2021-11-21 01:31:27,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110667 to 110613. [2021-11-21 01:31:27,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110613 states, 64942 states have (on average 1.2934002648517138) internal successors, (83996), 68448 states have internal predecessors, (83996), 36762 states have call successors, (36762), 9020 states have call predecessors, (36762), 8908 states have return successors, (38080), 35561 states have call predecessors, (38080), 36762 states have call successors, (38080) [2021-11-21 01:31:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110613 states to 110613 states and 158838 transitions. [2021-11-21 01:31:28,770 INFO L78 Accepts]: Start accepts. Automaton has 110613 states and 158838 transitions. Word has length 302 [2021-11-21 01:31:28,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:31:28,776 INFO L470 AbstractCegarLoop]: Abstraction has 110613 states and 158838 transitions. [2021-11-21 01:31:28,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-21 01:31:28,776 INFO L276 IsEmpty]: Start isEmpty. Operand 110613 states and 158838 transitions. [2021-11-21 01:31:28,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-11-21 01:31:28,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:28,817 INFO L514 BasicCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:31:28,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:31:28,818 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:28,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:28,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1843179172, now seen corresponding path program 1 times [2021-11-21 01:31:28,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:31:28,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110714244] [2021-11-21 01:31:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:28,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:31:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1502 trivial. 0 not checked. [2021-11-21 01:31:30,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:31:30,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110714244] [2021-11-21 01:31:30,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110714244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:31:30,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:31:30,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:31:30,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838314808] [2021-11-21 01:31:30,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:31:30,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:31:30,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:31:30,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:31:30,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:31:30,042 INFO L87 Difference]: Start difference. First operand 110613 states and 158838 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-21 01:31:32,826 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 01:31:36,637 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 01:31:47,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:31:47,020 INFO L93 Difference]: Finished difference Result 122266 states and 174899 transitions. [2021-11-21 01:31:47,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:31:47,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 333 [2021-11-21 01:31:47,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:31:47,690 INFO L225 Difference]: With dead ends: 122266 [2021-11-21 01:31:47,690 INFO L226 Difference]: Without dead ends: 122264 [2021-11-21 01:31:47,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:31:47,749 INFO L933 BasicCegarLoop]: 3080 mSDtfsCounter, 1129 mSDsluCounter, 13232 mSDsCounter, 0 mSdLazyCounter, 2957 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 14490 SdHoareTripleChecker+Invalid, 2966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2957 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:31:47,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 14490 Invalid, 2966 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 2957 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2021-11-21 01:31:47,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122264 states. [2021-11-21 01:31:52,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122264 to 122070. [2021-11-21 01:31:52,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122070 states, 72081 states have (on average 1.28888333957631) internal successors, (92904), 75809 states have internal predecessors, (92904), 39949 states have call successors, (39949), 10307 states have call predecessors, (39949), 10039 states have return successors, (41717), 38440 states have call predecessors, (41717), 39949 states have call successors, (41717)