./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dbf26404e70c3394fd0367244976693545d30c1a748b5c7360fa4057d4decd8b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:53:03,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:53:03,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:53:03,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:53:03,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:53:03,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:53:03,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:53:03,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:53:03,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:53:03,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:53:03,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:53:03,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:53:03,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:53:03,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:53:03,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:53:03,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:53:03,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:53:03,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:53:03,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:53:03,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:53:03,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:53:03,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:53:03,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:53:03,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:53:03,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:53:03,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:53:03,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:53:03,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:53:03,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:53:03,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:53:03,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:53:03,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:53:03,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:53:03,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:53:03,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:53:03,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:53:03,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:53:03,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:53:03,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:53:03,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:53:03,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:53:03,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:53:03,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:53:03,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:53:03,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:53:03,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:53:03,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:53:03,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:53:03,464 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:53:03,464 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:53:03,464 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:53:03,464 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:53:03,466 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:53:03,466 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:53:03,466 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:53:03,466 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:53:03,466 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:53:03,467 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:53:03,467 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:53:03,467 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:53:03,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:53:03,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:53:03,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:53:03,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:53:03,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:53:03,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:53:03,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:53:03,470 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:53:03,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:53:03,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:53:03,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:53:03,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:53:03,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:53:03,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:53:03,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:53:03,472 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:53:03,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:53:03,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:53:03,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:53:03,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:53:03,473 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_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbf26404e70c3394fd0367244976693545d30c1a748b5c7360fa4057d4decd8b [2021-11-25 17:53:03,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:53:03,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:53:03,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:53:03,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:53:03,831 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:53:03,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i [2021-11-25 17:53:03,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/data/a1aaf4c13/b4454638eb7348edab312f6c27a4e1bc/FLAG845f6ade7 [2021-11-25 17:53:04,975 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:53:04,975 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i [2021-11-25 17:53:05,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/data/a1aaf4c13/b4454638eb7348edab312f6c27a4e1bc/FLAG845f6ade7 [2021-11-25 17:53:05,295 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/data/a1aaf4c13/b4454638eb7348edab312f6c27a4e1bc [2021-11-25 17:53:05,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:53:05,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:53:05,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:53:05,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:53:05,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:53:05,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:53:05" (1/1) ... [2021-11-25 17:53:05,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707d7f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:05, skipping insertion in model container [2021-11-25 17:53:05,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:53:05" (1/1) ... [2021-11-25 17:53:05,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:53:05,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:53:09,303 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_0d8a31b5-5723-4158-9eac-6e752f89f252/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i[393184,393197] [2021-11-25 17:53:09,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:53:09,480 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:53:10,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i[393184,393197] [2021-11-25 17:53:10,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:53:10,496 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:53:10,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10 WrapperNode [2021-11-25 17:53:10,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:53:10,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:53:10,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:53:10,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:53:10,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:10,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:10,935 INFO L137 Inliner]: procedures = 473, calls = 2763, calls flagged for inlining = 210, calls inlined = 196, statements flattened = 6970 [2021-11-25 17:53:10,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:53:10,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:53:10,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:53:10,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:53:10,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:10,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:11,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:11,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:11,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:11,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:11,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:11,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:53:11,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:53:11,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:53:11,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:53:11,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (1/1) ... [2021-11-25 17:53:11,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:53:11,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:11,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:53:11,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:53:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure nla_get_u32 [2021-11-25 17:53:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_get_u32 [2021-11-25 17:53:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_total_size [2021-11-25 17:53:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_total_size [2021-11-25 17:53:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_port_list_get [2021-11-25 17:53:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_port_list_get [2021-11-25 17:53:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 17:53:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 17:53:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure __team_change_mode [2021-11-25 17:53:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_change_mode [2021-11-25 17:53:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u32 [2021-11-25 17:53:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u32 [2021-11-25 17:53:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-25 17:53:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-25 17:53:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 17:53:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 17:53:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure team_init [2021-11-25 17:53:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure team_init [2021-11-25 17:53:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure team_del_slave [2021-11-25 17:53:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure team_del_slave [2021-11-25 17:53:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_if_positive [2021-11-25 17:53:11,490 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_if_positive [2021-11-25 17:53:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-25 17:53:11,490 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-25 17:53:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure team_option_set [2021-11-25 17:53:11,490 INFO L138 BoogieDeclarations]: Found implementation of procedure team_option_set [2021-11-25 17:53:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure team_netpoll_setup [2021-11-25 17:53:11,491 INFO L138 BoogieDeclarations]: Found implementation of procedure team_netpoll_setup [2021-11-25 17:53:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-25 17:53:11,491 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-25 17:53:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 17:53:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 17:53:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 17:53:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 17:53:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2021-11-25 17:53:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2021-11-25 17:53:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure __team_queue_override_enabled_check [2021-11-25 17:53:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_queue_override_enabled_check [2021-11-25 17:53:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure team_queue_override_fini [2021-11-25 17:53:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure team_queue_override_fini [2021-11-25 17:53:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure team_netpoll_cleanup [2021-11-25 17:53:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure team_netpoll_cleanup [2021-11-25 17:53:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_mtu [2021-11-25 17:53:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_mtu [2021-11-25 17:53:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_fdb_dump [2021-11-25 17:53:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_fdb_dump [2021-11-25 17:53:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 17:53:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 17:53:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_get_rtnl [2021-11-25 17:53:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_get_rtnl [2021-11-25 17:53:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-25 17:53:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-25 17:53:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure team_set_mac_address [2021-11-25 17:53:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure team_set_mac_address [2021-11-25 17:53:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_add [2021-11-25 17:53:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_add [2021-11-25 17:53:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_unicast [2021-11-25 17:53:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_unicast [2021-11-25 17:53:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure team_get_num_tx_queues [2021-11-25 17:53:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure team_get_num_tx_queues [2021-11-25 17:53:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_end [2021-11-25 17:53:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_end [2021-11-25 17:53:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure team_poll_controller [2021-11-25 17:53:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure team_poll_controller [2021-11-25 17:53:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:53:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure team_add_slave [2021-11-25 17:53:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure team_add_slave [2021-11-25 17:53:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure team_vlan_rx_kill_vid [2021-11-25 17:53:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure team_vlan_rx_kill_vid [2021-11-25 17:53:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_del_option [2021-11-25 17:53:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_del_option [2021-11-25 17:53:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-25 17:53:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-25 17:53:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_unregister [2021-11-25 17:53:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_unregister [2021-11-25 17:53:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure team_mode_put [2021-11-25 17:53:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mode_put [2021-11-25 17:53:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 17:53:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 17:53:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_trylock [2021-11-25 17:53:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_trylock [2021-11-25 17:53:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 17:53:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 17:53:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_bridge_getlink [2021-11-25 17:53:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_bridge_getlink [2021-11-25 17:53:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure team_refresh_port_linkup [2021-11-25 17:53:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure team_refresh_port_linkup [2021-11-25 17:53:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_new [2021-11-25 17:53:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_new [2021-11-25 17:53:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_carrier [2021-11-25 17:53:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_carrier [2021-11-25 17:53:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 17:53:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 17:53:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_bridge_setlink [2021-11-25 17:53:11,506 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_bridge_setlink [2021-11-25 17:53:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure team_notify_peers [2021-11-25 17:53:11,506 INFO L138 BoogieDeclarations]: Found implementation of procedure team_notify_peers [2021-11-25 17:53:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 17:53:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure __team_port_change_send [2021-11-25 17:53:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_port_change_send [2021-11-25 17:53:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_end [2021-11-25 17:53:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_end [2021-11-25 17:53:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure team_fix_features [2021-11-25 17:53:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure team_fix_features [2021-11-25 17:53:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del_rcu [2021-11-25 17:53:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del_rcu [2021-11-25 17:53:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 17:53:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure __team_netpoll_cleanup [2021-11-25 17:53:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_netpoll_cleanup [2021-11-25 17:53:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u8 [2021-11-25 17:53:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u8 [2021-11-25 17:53:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:53:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure team_select_queue [2021-11-25 17:53:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure team_select_queue [2021-11-25 17:53:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_vid_del [2021-11-25 17:53:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_vid_del [2021-11-25 17:53:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 17:53:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 17:53:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure team_mode_option_set [2021-11-25 17:53:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mode_option_set [2021-11-25 17:53:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure __find_mode [2021-11-25 17:53:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_mode [2021-11-25 17:53:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_mode [2021-11-25 17:53:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_mode [2021-11-25 17:53:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-25 17:53:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-25 17:53:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure team_ethtool_get_drvinfo [2021-11-25 17:53:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure team_ethtool_get_drvinfo [2021-11-25 17:53:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-25 17:53:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-25 17:53:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 17:53:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 17:53:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_put [2021-11-25 17:53:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_put [2021-11-25 17:53:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure team_set_rx_mode [2021-11-25 17:53:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure team_set_rx_mode [2021-11-25 17:53:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure team_setup [2021-11-25 17:53:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure team_setup [2021-11-25 17:53:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_index_hash [2021-11-25 17:53:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_index_hash [2021-11-25 17:53:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure genl_info_net [2021-11-25 17:53:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure genl_info_net [2021-11-25 17:53:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-11-25 17:53:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-11-25 17:53:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-25 17:53:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-25 17:53:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-25 17:53:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-25 17:53:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:53:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-25 17:53:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-25 17:53:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:53:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure team_notify_peers_fini [2021-11-25 17:53:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure team_notify_peers_fini [2021-11-25 17:53:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 17:53:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 17:53:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_del_port [2021-11-25 17:53:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_del_port [2021-11-25 17:53:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:53:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 17:53:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:53:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:53:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2021-11-25 17:53:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2021-11-25 17:53:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:53:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:53:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_disable [2021-11-25 17:53:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_disable [2021-11-25 17:53:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_cmd_options_set [2021-11-25 17:53:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_cmd_options_set [2021-11-25 17:53:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure team_adjust_ops [2021-11-25 17:53:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure team_adjust_ops [2021-11-25 17:53:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_rx_handler_unregister [2021-11-25 17:53:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_rx_handler_unregister [2021-11-25 17:53:11,529 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 17:53:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 17:53:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_mtu [2021-11-25 17:53:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_mtu [2021-11-25 17:53:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 17:53:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 17:53:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_del [2021-11-25 17:53:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_del [2021-11-25 17:53:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-25 17:53:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-25 17:53:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_vids_del_by_dev [2021-11-25 17:53:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_vids_del_by_dev [2021-11-25 17:53:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure team_mcast_rejoin [2021-11-25 17:53:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mcast_rejoin [2021-11-25 17:53:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-25 17:53:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-25 17:53:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-25 17:53:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-25 17:53:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:53:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:53:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure team_mcast_rejoin_fini [2021-11-25 17:53:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mcast_rejoin_fini [2021-11-25 17:53:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_set_orig_dev_addr [2021-11-25 17:53:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_set_orig_dev_addr [2021-11-25 17:53:11,533 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_fill_one_port_get [2021-11-25 17:53:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_fill_one_port_get [2021-11-25 17:53:11,533 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_register [2021-11-25 17:53:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_register [2021-11-25 17:53:11,533 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-25 17:53:11,533 INFO L130 BoogieDeclarations]: Found specification of procedure team_options_change_check [2021-11-25 17:53:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure team_options_change_check [2021-11-25 17:53:11,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 17:53:11,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 17:53:11,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 17:53:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 17:53:11,534 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-25 17:53:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-25 17:53:11,534 INFO L130 BoogieDeclarations]: Found specification of procedure team_options_register [2021-11-25 17:53:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure team_options_register [2021-11-25 17:53:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 17:53:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 17:53:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_trim [2021-11-25 17:53:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_trim [2021-11-25 17:53:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_team_put [2021-11-25 17:53:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_team_put [2021-11-25 17:53:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add_option [2021-11-25 17:53:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add_option [2021-11-25 17:53:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure team_get_stats64 [2021-11-25 17:53:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure team_get_stats64 [2021-11-25 17:53:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 17:53:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2021-11-25 17:53:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2021-11-25 17:53:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-25 17:53:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-25 17:53:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_cancel [2021-11-25 17:53:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_cancel [2021-11-25 17:53:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 17:53:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 17:53:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_notifier [2021-11-25 17:53:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_notifier [2021-11-25 17:53:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_set_team_dev_addr [2021-11-25 17:53:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_set_team_dev_addr [2021-11-25 17:53:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure team_vlan_rx_add_vid [2021-11-25 17:53:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure team_vlan_rx_add_vid [2021-11-25 17:53:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 17:53:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 17:53:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 17:53:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 17:53:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head_rcu [2021-11-25 17:53:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head_rcu [2021-11-25 17:53:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-25 17:53:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-25 17:53:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-11-25 17:53:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-11-25 17:53:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure passthru_features_check [2021-11-25 17:53:11,545 INFO L138 BoogieDeclarations]: Found implementation of procedure passthru_features_check [2021-11-25 17:53:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure team_notify_peers_work [2021-11-25 17:53:11,545 INFO L138 BoogieDeclarations]: Found implementation of procedure team_notify_peers_work [2021-11-25 17:53:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure __team_carrier_check [2021-11-25 17:53:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_carrier_check [2021-11-25 17:53:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 17:53:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 17:53:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:53:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:53:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_start [2021-11-25 17:53:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_start [2021-11-25 17:53:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 17:53:11,547 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 17:53:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_team_get [2021-11-25 17:53:11,547 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_team_get [2021-11-25 17:53:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure nla_len [2021-11-25 17:53:11,547 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_len [2021-11-25 17:53:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net [2021-11-25 17:53:11,547 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net [2021-11-25 17:53:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:53:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 17:53:11,548 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 17:53:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enable_netpoll [2021-11-25 17:53:11,548 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enable_netpoll [2021-11-25 17:53:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-25 17:53:11,548 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-25 17:53:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure __team_queue_override_port_del [2021-11-25 17:53:11,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_queue_override_port_del [2021-11-25 17:53:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 17:53:11,549 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 17:53:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:53:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-25 17:53:11,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-25 17:53:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2021-11-25 17:53:11,549 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2021-11-25 17:53:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_cmd_options_get [2021-11-25 17:53:11,549 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_cmd_options_get [2021-11-25 17:53:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-11-25 17:53:11,550 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-11-25 17:53:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 17:53:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enabled [2021-11-25 17:53:11,550 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enabled [2021-11-25 17:53:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-25 17:53:11,550 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-25 17:53:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure team_upper_dev_unlink [2021-11-25 17:53:11,551 INFO L138 BoogieDeclarations]: Found implementation of procedure team_upper_dev_unlink [2021-11-25 17:53:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure __team_find_option [2021-11-25 17:53:11,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_find_option [2021-11-25 17:53:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure nla_data [2021-11-25 17:53:11,551 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_data [2021-11-25 17:53:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 17:53:11,551 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 17:53:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 17:53:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 17:53:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 17:53:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 17:53:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 17:53:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 17:53:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_fill_one_option_get [2021-11-25 17:53:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_fill_one_option_get [2021-11-25 17:53:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure team_is_mode_set [2021-11-25 17:53:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure team_is_mode_set [2021-11-25 17:53:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_fdb_add [2021-11-25 17:53:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_fdb_add [2021-11-25 17:53:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_change_check [2021-11-25 17:53:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_change_check [2021-11-25 17:53:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 17:53:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 17:53:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure team_get_num_rx_queues [2021-11-25 17:53:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure team_get_num_rx_queues [2021-11-25 17:53:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure call_netdevice_notifiers [2021-11-25 17:53:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure call_netdevice_notifiers [2021-11-25 17:53:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-11-25 17:53:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-11-25 17:53:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure __team_compute_features [2021-11-25 17:53:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_compute_features [2021-11-25 17:53:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure team_mcast_rejoin_work [2021-11-25 17:53:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mcast_rejoin_work [2021-11-25 17:53:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_leave [2021-11-25 17:53:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_leave [2021-11-25 17:53:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure __send_and_alloc_skb [2021-11-25 17:53:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __send_and_alloc_skb [2021-11-25 17:53:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_put [2021-11-25 17:53:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_put [2021-11-25 17:53:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 17:53:11,556 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 17:53:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_init [2021-11-25 17:53:11,556 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_init [2021-11-25 17:53:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure __team_get_qom_list [2021-11-25 17:53:11,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_get_qom_list [2021-11-25 17:53:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 17:53:11,556 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 17:53:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_cancel [2021-11-25 17:53:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_cancel [2021-11-25 17:53:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:53:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure team_option_get [2021-11-25 17:53:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure team_option_get [2021-11-25 17:53:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_del [2021-11-25 17:53:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_del [2021-11-25 17:53:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 17:53:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 17:53:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_options_get [2021-11-25 17:53:11,558 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_options_get [2021-11-25 17:53:11,558 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_increment_features [2021-11-25 17:53:11,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_increment_features [2021-11-25 17:53:11,558 INFO L130 BoogieDeclarations]: Found specification of procedure team_open [2021-11-25 17:53:11,558 INFO L138 BoogieDeclarations]: Found implementation of procedure team_open [2021-11-25 17:53:11,558 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2021-11-25 17:53:11,558 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2021-11-25 17:53:11,558 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add_port [2021-11-25 17:53:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add_port [2021-11-25 17:53:11,559 INFO L130 BoogieDeclarations]: Found specification of procedure __team_queue_override_port_add [2021-11-25 17:53:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_queue_override_port_add [2021-11-25 17:53:11,559 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_change_check [2021-11-25 17:53:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_change_check [2021-11-25 17:53:11,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-25 17:53:11,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-25 17:53:11,559 INFO L130 BoogieDeclarations]: Found specification of procedure __set_port_dev_addr [2021-11-25 17:53:11,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_port_dev_addr [2021-11-25 17:53:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~TO~int [2021-11-25 17:53:11,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~TO~int [2021-11-25 17:53:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-25 17:53:11,560 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-25 17:53:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-25 17:53:11,560 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-25 17:53:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put [2021-11-25 17:53:11,561 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put [2021-11-25 17:53:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_rx_flags [2021-11-25 17:53:11,561 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_rx_flags [2021-11-25 17:53:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure team_validate [2021-11-25 17:53:11,561 INFO L138 BoogieDeclarations]: Found implementation of procedure team_validate [2021-11-25 17:53:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_fdb_del [2021-11-25 17:53:11,561 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_fdb_del [2021-11-25 17:53:11,562 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_free [2021-11-25 17:53:11,562 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_free [2021-11-25 17:53:11,562 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 17:53:11,562 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 17:53:11,562 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enable [2021-11-25 17:53:11,562 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enable [2021-11-25 17:53:11,562 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 17:53:11,562 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 17:53:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure switchdev_port_bridge_dellink [2021-11-25 17:53:11,563 INFO L138 BoogieDeclarations]: Found implementation of procedure switchdev_port_bridge_dellink [2021-11-25 17:53:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure team_set_no_mode [2021-11-25 17:53:11,563 INFO L138 BoogieDeclarations]: Found implementation of procedure team_set_no_mode [2021-11-25 17:53:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 17:53:11,563 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 17:53:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_flag [2021-11-25 17:53:11,563 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_flag [2021-11-25 17:53:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:53:11,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:53:11,564 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_disable_netpoll [2021-11-25 17:53:11,564 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_disable_netpoll [2021-11-25 17:53:11,564 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enter [2021-11-25 17:53:11,564 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enter [2021-11-25 17:53:11,564 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-25 17:53:11,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-25 17:53:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_string [2021-11-25 17:53:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_string [2021-11-25 17:53:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:53:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 17:53:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 17:53:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_event_options_get [2021-11-25 17:53:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_event_options_get [2021-11-25 17:53:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure team_close [2021-11-25 17:53:11,566 INFO L138 BoogieDeclarations]: Found implementation of procedure team_close [2021-11-25 17:53:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure team_uninit [2021-11-25 17:53:11,566 INFO L138 BoogieDeclarations]: Found implementation of procedure team_uninit [2021-11-25 17:53:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add [2021-11-25 17:53:11,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add [2021-11-25 17:53:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_skb_cb [2021-11-25 17:53:11,566 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_skb_cb [2021-11-25 17:53:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure team_newlink [2021-11-25 17:53:11,567 INFO L138 BoogieDeclarations]: Found implementation of procedure team_newlink [2021-11-25 17:53:12,753 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:53:12,761 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:53:13,063 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 17:53:18,511 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:53:21,332 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:53:21,333 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 17:53:21,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:21 BoogieIcfgContainer [2021-11-25 17:53:21,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:53:21,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:53:21,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:53:21,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:53:21,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:53:05" (1/3) ... [2021-11-25 17:53:21,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16381fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:21, skipping insertion in model container [2021-11-25 17:53:21,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:10" (2/3) ... [2021-11-25 17:53:21,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16381fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:21, skipping insertion in model container [2021-11-25 17:53:21,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:21" (3/3) ... [2021-11-25 17:53:21,353 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--team--team.ko-entry_point.cil.out.i [2021-11-25 17:53:21,360 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:53:21,360 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:53:21,444 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:53:21,459 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:53:21,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:53:21,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 2340 states, 1455 states have (on average 1.3628865979381444) internal successors, (1983), 1514 states have internal predecessors, (1983), 682 states have call successors, (682), 202 states have call predecessors, (682), 201 states have return successors, (674), 661 states have call predecessors, (674), 674 states have call successors, (674) [2021-11-25 17:53:21,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-25 17:53:21,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:21,604 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:21,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:21,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:21,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1984800565, now seen corresponding path program 1 times [2021-11-25 17:53:21,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:21,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43932144] [2021-11-25 17:53:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:21,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2021-11-25 17:53:22,999 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:22,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43932144] [2021-11-25 17:53:22,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43932144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:23,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:23,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:53:23,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512102215] [2021-11-25 17:53:23,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:23,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:23,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:23,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:23,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:23,070 INFO L87 Difference]: Start difference. First operand has 2340 states, 1455 states have (on average 1.3628865979381444) internal successors, (1983), 1514 states have internal predecessors, (1983), 682 states have call successors, (682), 202 states have call predecessors, (682), 201 states have return successors, (674), 661 states have call predecessors, (674), 674 states have call successors, (674) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-25 17:53:25,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:28,187 INFO L93 Difference]: Finished difference Result 6802 states and 9801 transitions. [2021-11-25 17:53:28,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:28,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 473 [2021-11-25 17:53:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:28,266 INFO L225 Difference]: With dead ends: 6802 [2021-11-25 17:53:28,266 INFO L226 Difference]: Without dead ends: 4523 [2021-11-25 17:53:28,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:28,303 INFO L933 BasicCegarLoop]: 3646 mSDtfsCounter, 3157 mSDsluCounter, 3313 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3157 SdHoareTripleChecker+Valid, 6657 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:28,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3157 Valid, 6657 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 621 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-25 17:53:28,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4523 states. [2021-11-25 17:53:28,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4523 to 4520. [2021-11-25 17:53:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 2831 states have (on average 1.3599434828682444) internal successors, (3850), 2927 states have internal predecessors, (3850), 1291 states have call successors, (1291), 398 states have call predecessors, (1291), 397 states have return successors, (1289), 1263 states have call predecessors, (1289), 1289 states have call successors, (1289) [2021-11-25 17:53:28,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 6430 transitions. [2021-11-25 17:53:28,935 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 6430 transitions. Word has length 473 [2021-11-25 17:53:28,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:28,939 INFO L470 AbstractCegarLoop]: Abstraction has 4520 states and 6430 transitions. [2021-11-25 17:53:28,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-25 17:53:28,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 6430 transitions. [2021-11-25 17:53:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-11-25 17:53:28,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:28,960 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:28,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:53:28,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:28,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:28,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1340105724, now seen corresponding path program 1 times [2021-11-25 17:53:28,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:28,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754578793] [2021-11-25 17:53:28,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:28,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2021-11-25 17:53:29,898 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:29,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754578793] [2021-11-25 17:53:29,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754578793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:29,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:29,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:53:29,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662667910] [2021-11-25 17:53:29,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:29,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:29,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:29,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:29,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:29,915 INFO L87 Difference]: Start difference. First operand 4520 states and 6430 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2021-11-25 17:53:31,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:36,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:36,117 INFO L93 Difference]: Finished difference Result 9441 states and 13528 transitions. [2021-11-25 17:53:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:53:36,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 471 [2021-11-25 17:53:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:36,179 INFO L225 Difference]: With dead ends: 9441 [2021-11-25 17:53:36,180 INFO L226 Difference]: Without dead ends: 5012 [2021-11-25 17:53:36,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:36,208 INFO L933 BasicCegarLoop]: 5848 mSDtfsCounter, 4307 mSDsluCounter, 9720 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 266 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4307 SdHoareTripleChecker+Valid, 14665 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:36,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4307 Valid, 14665 Invalid, 1919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [266 Valid, 1652 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2021-11-25 17:53:36,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2021-11-25 17:53:36,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 4535. [2021-11-25 17:53:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4535 states, 2840 states have (on average 1.3588028169014084) internal successors, (3859), 2936 states have internal predecessors, (3859), 1293 states have call successors, (1293), 402 states have call predecessors, (1293), 401 states have return successors, (1291), 1265 states have call predecessors, (1291), 1291 states have call successors, (1291) [2021-11-25 17:53:36,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 6443 transitions. [2021-11-25 17:53:36,642 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 6443 transitions. Word has length 471 [2021-11-25 17:53:36,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:36,644 INFO L470 AbstractCegarLoop]: Abstraction has 4535 states and 6443 transitions. [2021-11-25 17:53:36,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2021-11-25 17:53:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 6443 transitions. [2021-11-25 17:53:36,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-11-25 17:53:36,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:36,658 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:36,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:53:36,658 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:36,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash -407268237, now seen corresponding path program 1 times [2021-11-25 17:53:36,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:36,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722829732] [2021-11-25 17:53:36,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:36,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:37,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2021-11-25 17:53:37,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:37,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722829732] [2021-11-25 17:53:37,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722829732] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:37,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:37,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:53:37,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957462129] [2021-11-25 17:53:37,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:37,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:37,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:37,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:37,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:37,424 INFO L87 Difference]: Start difference. First operand 4535 states and 6443 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-25 17:53:40,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:40,450 INFO L93 Difference]: Finished difference Result 13378 states and 19112 transitions. [2021-11-25 17:53:40,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:40,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 474 [2021-11-25 17:53:40,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:40,524 INFO L225 Difference]: With dead ends: 13378 [2021-11-25 17:53:40,524 INFO L226 Difference]: Without dead ends: 8938 [2021-11-25 17:53:40,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:40,553 INFO L933 BasicCegarLoop]: 3775 mSDtfsCounter, 3186 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 6686 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:40,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3186 Valid, 6686 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-25 17:53:40,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8938 states. [2021-11-25 17:53:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8938 to 8928. [2021-11-25 17:53:41,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8928 states, 5602 states have (on average 1.362192074259193) internal successors, (7631), 5795 states have internal predecessors, (7631), 2530 states have call successors, (2530), 796 states have call predecessors, (2530), 795 states have return successors, (2620), 2474 states have call predecessors, (2620), 2528 states have call successors, (2620) [2021-11-25 17:53:41,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8928 states to 8928 states and 12781 transitions. [2021-11-25 17:53:41,066 INFO L78 Accepts]: Start accepts. Automaton has 8928 states and 12781 transitions. Word has length 474 [2021-11-25 17:53:41,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:41,068 INFO L470 AbstractCegarLoop]: Abstraction has 8928 states and 12781 transitions. [2021-11-25 17:53:41,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-25 17:53:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 8928 states and 12781 transitions. [2021-11-25 17:53:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2021-11-25 17:53:41,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:41,087 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:41,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 17:53:41,087 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:41,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:41,088 INFO L85 PathProgramCache]: Analyzing trace with hash -394700822, now seen corresponding path program 1 times [2021-11-25 17:53:41,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:41,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575240523] [2021-11-25 17:53:41,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:41,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3843 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3843 trivial. 0 not checked. [2021-11-25 17:53:41,639 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:41,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575240523] [2021-11-25 17:53:41,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575240523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:41,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:41,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:53:41,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805721266] [2021-11-25 17:53:41,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:41,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:41,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:41,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:41,642 INFO L87 Difference]: Start difference. First operand 8928 states and 12781 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-25 17:53:43,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:46,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:46,588 INFO L93 Difference]: Finished difference Result 19725 states and 28044 transitions. [2021-11-25 17:53:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:46,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 522 [2021-11-25 17:53:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:46,692 INFO L225 Difference]: With dead ends: 19725 [2021-11-25 17:53:46,692 INFO L226 Difference]: Without dead ends: 10901 [2021-11-25 17:53:46,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:46,741 INFO L933 BasicCegarLoop]: 4048 mSDtfsCounter, 2502 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:46,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2502 Valid, 6838 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 907 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2021-11-25 17:53:46,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10901 states. [2021-11-25 17:53:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10901 to 10886. [2021-11-25 17:53:47,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10886 states, 6837 states have (on average 1.3565891472868217) internal successors, (9275), 7081 states have internal predecessors, (9275), 3011 states have call successors, (3011), 1038 states have call predecessors, (3011), 1037 states have return successors, (3105), 2950 states have call predecessors, (3105), 3009 states have call successors, (3105) [2021-11-25 17:53:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10886 states to 10886 states and 15391 transitions. [2021-11-25 17:53:47,319 INFO L78 Accepts]: Start accepts. Automaton has 10886 states and 15391 transitions. Word has length 522 [2021-11-25 17:53:47,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:47,320 INFO L470 AbstractCegarLoop]: Abstraction has 10886 states and 15391 transitions. [2021-11-25 17:53:47,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-25 17:53:47,321 INFO L276 IsEmpty]: Start isEmpty. Operand 10886 states and 15391 transitions. [2021-11-25 17:53:47,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2021-11-25 17:53:47,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:47,351 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 22, 22, 21, 21, 21, 21, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:47,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 17:53:47,352 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:47,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:47,353 INFO L85 PathProgramCache]: Analyzing trace with hash -589720263, now seen corresponding path program 1 times [2021-11-25 17:53:47,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:47,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271936481] [2021-11-25 17:53:47,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:47,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5045 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5043 trivial. 0 not checked. [2021-11-25 17:53:48,123 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:48,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271936481] [2021-11-25 17:53:48,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271936481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:48,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:48,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:53:48,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240979662] [2021-11-25 17:53:48,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:48,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:48,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:48,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:48,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:48,126 INFO L87 Difference]: Start difference. First operand 10886 states and 15391 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-25 17:53:50,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:52,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:52,758 INFO L93 Difference]: Finished difference Result 22402 states and 31732 transitions. [2021-11-25 17:53:52,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:52,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 596 [2021-11-25 17:53:52,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:52,851 INFO L225 Difference]: With dead ends: 22402 [2021-11-25 17:53:52,851 INFO L226 Difference]: Without dead ends: 14758 [2021-11-25 17:53:52,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:52,896 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 2797 mSDsluCounter, 3044 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 114 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2797 SdHoareTripleChecker+Valid, 7675 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:52,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2797 Valid, 7675 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1059 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-11-25 17:53:52,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14758 states. [2021-11-25 17:53:53,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14758 to 14743. [2021-11-25 17:53:53,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14743 states, 9312 states have (on average 1.3507302405498283) internal successors, (12578), 9639 states have internal predecessors, (12578), 4016 states have call successors, (4016), 1415 states have call predecessors, (4016), 1414 states have return successors, (4140), 3936 states have call predecessors, (4140), 4014 states have call successors, (4140) [2021-11-25 17:53:53,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14743 states to 14743 states and 20734 transitions. [2021-11-25 17:53:53,926 INFO L78 Accepts]: Start accepts. Automaton has 14743 states and 20734 transitions. Word has length 596 [2021-11-25 17:53:53,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:53,927 INFO L470 AbstractCegarLoop]: Abstraction has 14743 states and 20734 transitions. [2021-11-25 17:53:53,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-25 17:53:53,928 INFO L276 IsEmpty]: Start isEmpty. Operand 14743 states and 20734 transitions. [2021-11-25 17:53:53,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2021-11-25 17:53:53,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:53,971 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 22, 22, 21, 21, 21, 21, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:53,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 17:53:53,971 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:53,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:53,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1354274029, now seen corresponding path program 1 times [2021-11-25 17:53:53,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:53,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098047351] [2021-11-25 17:53:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:53,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5064 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5060 trivial. 0 not checked. [2021-11-25 17:53:54,930 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:54,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098047351] [2021-11-25 17:53:54,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098047351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:54,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:54,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:53:54,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331045873] [2021-11-25 17:53:54,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:54,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:53:54,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:54,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:53:54,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:54,933 INFO L87 Difference]: Start difference. First operand 14743 states and 20734 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (60), 4 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-25 17:53:56,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:04,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:54:04,164 INFO L93 Difference]: Finished difference Result 29583 states and 41653 transitions. [2021-11-25 17:54:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:54:04,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (60), 4 states have call predecessors, (60), 3 states have call successors, (60) Word has length 634 [2021-11-25 17:54:04,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:54:04,259 INFO L225 Difference]: With dead ends: 29583 [2021-11-25 17:54:04,259 INFO L226 Difference]: Without dead ends: 18082 [2021-11-25 17:54:04,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:54:04,307 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 2796 mSDsluCounter, 12666 mSDsCounter, 0 mSdLazyCounter, 3508 mSolverCounterSat, 72 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 16267 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 3508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:54:04,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2798 Valid, 16267 Invalid, 3581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 3508 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2021-11-25 17:54:04,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18082 states. [2021-11-25 17:54:05,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18082 to 18015. [2021-11-25 17:54:05,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18015 states, 11397 states have (on average 1.353952794595069) internal successors, (15431), 11800 states have internal predecessors, (15431), 4880 states have call successors, (4880), 1735 states have call predecessors, (4880), 1737 states have return successors, (5033), 4785 states have call predecessors, (5033), 4878 states have call successors, (5033) [2021-11-25 17:54:05,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18015 states to 18015 states and 25344 transitions. [2021-11-25 17:54:05,250 INFO L78 Accepts]: Start accepts. Automaton has 18015 states and 25344 transitions. Word has length 634 [2021-11-25 17:54:05,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:54:05,251 INFO L470 AbstractCegarLoop]: Abstraction has 18015 states and 25344 transitions. [2021-11-25 17:54:05,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (60), 4 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-25 17:54:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 18015 states and 25344 transitions. [2021-11-25 17:54:05,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2021-11-25 17:54:05,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:54:05,291 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 22, 22, 21, 21, 21, 21, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:54:05,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 17:54:05,291 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:54:05,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:54:05,292 INFO L85 PathProgramCache]: Analyzing trace with hash 590734554, now seen corresponding path program 1 times [2021-11-25 17:54:05,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:54:05,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225560379] [2021-11-25 17:54:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:54:05,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:54:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:54:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5064 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5047 trivial. 0 not checked. [2021-11-25 17:54:06,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:54:06,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225560379] [2021-11-25 17:54:06,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225560379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:54:06,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:54:06,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:54:06,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734632517] [2021-11-25 17:54:06,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:54:06,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:54:06,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:54:06,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:54:06,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:54:06,098 INFO L87 Difference]: Start difference. First operand 18015 states and 25344 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-25 17:54:07,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:09,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:54:11,541 INFO L93 Difference]: Finished difference Result 34554 states and 48971 transitions. [2021-11-25 17:54:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:54:11,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 647 [2021-11-25 17:54:11,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:54:11,640 INFO L225 Difference]: With dead ends: 34554 [2021-11-25 17:54:11,640 INFO L226 Difference]: Without dead ends: 18022 [2021-11-25 17:54:11,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:54:11,707 INFO L933 BasicCegarLoop]: 2999 mSDtfsCounter, 0 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-25 17:54:11,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5995 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 615 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-25 17:54:11,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18022 states. [2021-11-25 17:54:12,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18022 to 18022. [2021-11-25 17:54:12,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18022 states, 11404 states have (on average 1.353735531392494) internal successors, (15438), 11807 states have internal predecessors, (15438), 4880 states have call successors, (4880), 1735 states have call predecessors, (4880), 1737 states have return successors, (5033), 4785 states have call predecessors, (5033), 4878 states have call successors, (5033) [2021-11-25 17:54:12,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18022 states to 18022 states and 25351 transitions. [2021-11-25 17:54:12,786 INFO L78 Accepts]: Start accepts. Automaton has 18022 states and 25351 transitions. Word has length 647 [2021-11-25 17:54:12,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:54:12,787 INFO L470 AbstractCegarLoop]: Abstraction has 18022 states and 25351 transitions. [2021-11-25 17:54:12,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-25 17:54:12,788 INFO L276 IsEmpty]: Start isEmpty. Operand 18022 states and 25351 transitions. [2021-11-25 17:54:12,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2021-11-25 17:54:12,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:54:12,822 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 22, 22, 21, 21, 21, 21, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:54:12,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 17:54:12,823 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:54:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:54:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash -459554384, now seen corresponding path program 1 times [2021-11-25 17:54:12,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:54:12,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272436591] [2021-11-25 17:54:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:54:12,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:54:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:54:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5065 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 5047 trivial. 0 not checked. [2021-11-25 17:54:13,635 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:54:13,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272436591] [2021-11-25 17:54:13,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272436591] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:54:13,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098686309] [2021-11-25 17:54:13,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:54:13,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:54:13,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:54:13,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:54:13,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a31b5-5723-4158-9eac-6e752f89f252/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:54:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:54:15,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 7086 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:54:15,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:54:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5065 backedges. 82 proven. 1 refuted. 0 times theorem prover too weak. 4982 trivial. 0 not checked. [2021-11-25 17:54:16,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:54:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5065 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 5047 trivial. 0 not checked. [2021-11-25 17:54:18,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098686309] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:54:18,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [504447651] [2021-11-25 17:54:18,113 INFO L159 IcfgInterpreter]: Started Sifa with 226 locations of interest [2021-11-25 17:54:18,113 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 17:54:18,119 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 17:54:18,124 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 17:54:18,124 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 17:54:26,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:26,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:27,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:28,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:28,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:30,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:30,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:33,973 INFO L244 Elim1Store]: Index analysis took 7709 ms