./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fd0809ab472c07ecac4481f79234cefe77a263df35fd70312ac385669cfbdfaf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 14:41:55,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 14:41:55,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 14:41:55,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 14:41:55,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 14:41:55,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 14:41:55,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 14:41:55,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 14:41:55,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 14:41:55,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 14:41:55,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 14:41:55,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 14:41:55,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 14:41:55,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 14:41:55,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 14:41:55,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 14:41:55,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 14:41:55,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 14:41:55,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 14:41:55,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 14:41:55,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 14:41:55,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 14:41:55,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 14:41:55,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 14:41:55,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 14:41:55,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 14:41:55,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 14:41:55,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 14:41:55,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 14:41:55,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 14:41:55,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 14:41:55,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 14:41:55,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 14:41:55,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 14:41:55,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 14:41:55,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 14:41:55,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 14:41:55,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 14:41:55,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 14:41:55,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 14:41:55,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 14:41:55,728 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 14:41:55,746 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 14:41:55,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 14:41:55,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 14:41:55,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 14:41:55,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 14:41:55,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 14:41:55,753 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 14:41:55,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 14:41:55,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 14:41:55,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 14:41:55,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 14:41:55,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 14:41:55,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 14:41:55,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 14:41:55,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 14:41:55,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 14:41:55,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 14:41:55,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 14:41:55,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 14:41:55,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:41:55,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 14:41:55,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 14:41:55,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 14:41:55,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 14:41:55,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 14:41:55,756 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 14:41:55,756 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 14:41:55,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 14:41:55,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 14:41:55,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0809ab472c07ecac4481f79234cefe77a263df35fd70312ac385669cfbdfaf [2021-11-06 14:41:55,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 14:41:55,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 14:41:55,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 14:41:55,971 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 14:41:55,972 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 14:41:55,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i [2021-11-06 14:41:56,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f21e2b19f/c454db5726cd4dfe9049fc67aade8f5f/FLAG67a1e6561 [2021-11-06 14:41:56,716 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 14:41:56,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i [2021-11-06 14:41:56,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f21e2b19f/c454db5726cd4dfe9049fc67aade8f5f/FLAG67a1e6561 [2021-11-06 14:41:57,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f21e2b19f/c454db5726cd4dfe9049fc67aade8f5f [2021-11-06 14:41:57,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 14:41:57,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 14:41:57,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 14:41:57,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 14:41:57,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 14:41:57,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:41:57" (1/1) ... [2021-11-06 14:41:57,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e5e577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:57, skipping insertion in model container [2021-11-06 14:41:57,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:41:57" (1/1) ... [2021-11-06 14:41:57,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 14:41:57,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 14:41:58,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i[177976,177989] [2021-11-06 14:41:59,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:41:59,372 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 14:41:59,465 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i[177976,177989] [2021-11-06 14:41:59,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:41:59,892 INFO L208 MainTranslator]: Completed translation [2021-11-06 14:41:59,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59 WrapperNode [2021-11-06 14:41:59,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 14:41:59,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 14:41:59,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 14:41:59,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 14:41:59,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:41:59,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:42:00,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 14:42:00,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 14:42:00,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 14:42:00,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 14:42:00,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:42:00,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:42:00,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:42:00,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:42:01,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:42:01,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:42:01,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:42:01,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 14:42:01,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 14:42:01,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 14:42:01,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 14:42:01,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (1/1) ... [2021-11-06 14:42:01,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:42:01,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 14:42:01,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 14:42:01,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 14:42:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure __team_change_mode [2021-11-06 14:42:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_change_mode [2021-11-06 14:42:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure team_init [2021-11-06 14:42:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure team_init [2021-11-06 14:42:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure team_del_slave [2021-11-06 14:42:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure team_del_slave [2021-11-06 14:42:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure team_option_set [2021-11-06 14:42:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure team_option_set [2021-11-06 14:42:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_add [2021-11-06 14:42:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_add [2021-11-06 14:42:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 14:42:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure team_add_slave [2021-11-06 14:42:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure team_add_slave [2021-11-06 14:42:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 14:42:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 14:42:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 14:42:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure team_mode_option_set [2021-11-06 14:42:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mode_option_set [2021-11-06 14:42:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_mode [2021-11-06 14:42:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_mode [2021-11-06 14:42:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-06 14:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 14:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 14:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 14:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 14:42:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 14:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 14:42:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 14:42:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_cmd_options_set [2021-11-06 14:42:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_cmd_options_set [2021-11-06 14:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_del [2021-11-06 14:42:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_del [2021-11-06 14:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 14:42:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 14:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_register [2021-11-06 14:42:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_register [2021-11-06 14:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure team_options_change_check [2021-11-06 14:42:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure team_options_change_check [2021-11-06 14:42:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 14:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 14:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure team_options_register [2021-11-06 14:42:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure team_options_register [2021-11-06 14:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add_option [2021-11-06 14:42:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add_option [2021-11-06 14:42:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 14:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 14:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 14:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_cmd_options_get [2021-11-06 14:42:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_cmd_options_get [2021-11-06 14:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 14:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_fill_one_option_get [2021-11-06 14:42:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_fill_one_option_get [2021-11-06 14:42:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 14:42:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure team_option_get [2021-11-06 14:42:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure team_option_get [2021-11-06 14:42:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_options_get [2021-11-06 14:42:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_options_get [2021-11-06 14:42:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add_port [2021-11-06 14:42:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add_port [2021-11-06 14:42:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_change_check [2021-11-06 14:42:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_change_check [2021-11-06 14:42:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 14:42:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 14:42:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enter [2021-11-06 14:42:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enter [2021-11-06 14:42:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 14:42:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_event_options_get [2021-11-06 14:42:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_event_options_get [2021-11-06 14:42:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure team_uninit [2021-11-06 14:42:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure team_uninit [2021-11-06 14:42:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add [2021-11-06 14:42:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add [2021-11-06 14:42:16,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 14:42:16,608 INFO L299 CfgBuilder]: Removed 5565 assume(true) statements. [2021-11-06 14:42:16,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:42:16 BoogieIcfgContainer [2021-11-06 14:42:16,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 14:42:16,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 14:42:16,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 14:42:16,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 14:42:16,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:41:57" (1/3) ... [2021-11-06 14:42:16,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f56678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:42:16, skipping insertion in model container [2021-11-06 14:42:16,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:41:59" (2/3) ... [2021-11-06 14:42:16,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f56678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:42:16, skipping insertion in model container [2021-11-06 14:42:16,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:42:16" (3/3) ... [2021-11-06 14:42:16,621 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i [2021-11-06 14:42:16,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 14:42:16,625 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-06 14:42:16,677 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 14:42:16,681 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=PETRI_NET, 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 [2021-11-06 14:42:16,681 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-06 14:42:16,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 6373 states, 6296 states have (on average 1.4866581956797966) internal successors, (9360), 6300 states have internal predecessors, (9360), 48 states have call successors, (48), 27 states have call predecessors, (48), 27 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2021-11-06 14:42:16,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-06 14:42:16,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:42:16,775 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:42:16,776 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:42:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:42:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1443674913, now seen corresponding path program 1 times [2021-11-06 14:42:16,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:42:16,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817699815] [2021-11-06 14:42:16,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:42:16,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:42:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:42:17,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:42:17,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817699815] [2021-11-06 14:42:17,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817699815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:42:17,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:42:17,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:42:17,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097321536] [2021-11-06 14:42:17,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:42:17,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:42:17,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:42:17,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:42:17,374 INFO L87 Difference]: Start difference. First operand has 6373 states, 6296 states have (on average 1.4866581956797966) internal successors, (9360), 6300 states have internal predecessors, (9360), 48 states have call successors, (48), 27 states have call predecessors, (48), 27 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:19,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:42:19,937 INFO L93 Difference]: Finished difference Result 18999 states and 28304 transitions. [2021-11-06 14:42:19,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:42:19,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-06 14:42:19,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:42:20,023 INFO L225 Difference]: With dead ends: 18999 [2021-11-06 14:42:20,023 INFO L226 Difference]: Without dead ends: 12601 [2021-11-06 14:42:20,064 INFO L786 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 [2021-11-06 14:42:20,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12601 states. [2021-11-06 14:42:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12601 to 12601. [2021-11-06 14:42:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12601 states, 12450 states have (on average 1.46570281124498) internal successors, (18248), 12456 states have internal predecessors, (18248), 96 states have call successors, (96), 54 states have call predecessors, (96), 54 states have return successors, (96), 94 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-06 14:42:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12601 states to 12601 states and 18440 transitions. [2021-11-06 14:42:20,524 INFO L78 Accepts]: Start accepts. Automaton has 12601 states and 18440 transitions. Word has length 47 [2021-11-06 14:42:20,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:42:20,525 INFO L470 AbstractCegarLoop]: Abstraction has 12601 states and 18440 transitions. [2021-11-06 14:42:20,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:20,526 INFO L276 IsEmpty]: Start isEmpty. Operand 12601 states and 18440 transitions. [2021-11-06 14:42:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 14:42:20,537 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:42:20,537 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:42:20,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 14:42:20,538 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:42:20,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:42:20,540 INFO L85 PathProgramCache]: Analyzing trace with hash 457393101, now seen corresponding path program 1 times [2021-11-06 14:42:20,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:42:20,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436278783] [2021-11-06 14:42:20,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:42:20,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:42:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:20,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:42:20,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:42:20,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436278783] [2021-11-06 14:42:20,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436278783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:42:20,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:42:20,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 14:42:20,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179497294] [2021-11-06 14:42:20,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 14:42:20,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:42:20,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 14:42:20,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 14:42:20,787 INFO L87 Difference]: Start difference. First operand 12601 states and 18440 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:21,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:42:21,856 INFO L93 Difference]: Finished difference Result 37679 states and 55361 transitions. [2021-11-06 14:42:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 14:42:21,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-06 14:42:21,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:42:21,980 INFO L225 Difference]: With dead ends: 37679 [2021-11-06 14:42:21,980 INFO L226 Difference]: Without dead ends: 25131 [2021-11-06 14:42:22,032 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 14:42:22,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25131 states. [2021-11-06 14:42:22,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25131 to 25067. [2021-11-06 14:42:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25067 states, 24766 states have (on average 1.4657191310667852) internal successors, (36300), 24778 states have internal predecessors, (36300), 192 states have call successors, (192), 108 states have call predecessors, (192), 108 states have return successors, (288), 188 states have call predecessors, (288), 192 states have call successors, (288) [2021-11-06 14:42:22,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25067 states to 25067 states and 36780 transitions. [2021-11-06 14:42:22,888 INFO L78 Accepts]: Start accepts. Automaton has 25067 states and 36780 transitions. Word has length 50 [2021-11-06 14:42:22,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:42:22,888 INFO L470 AbstractCegarLoop]: Abstraction has 25067 states and 36780 transitions. [2021-11-06 14:42:22,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:22,889 INFO L276 IsEmpty]: Start isEmpty. Operand 25067 states and 36780 transitions. [2021-11-06 14:42:22,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-06 14:42:22,912 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:42:22,913 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 14:42:22,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 14:42:22,913 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:42:22,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:42:22,914 INFO L85 PathProgramCache]: Analyzing trace with hash 509003370, now seen corresponding path program 1 times [2021-11-06 14:42:22,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:42:22,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640668868] [2021-11-06 14:42:22,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:42:22,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:42:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:23,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:42:23,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:42:23,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640668868] [2021-11-06 14:42:23,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640668868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:42:23,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:42:23,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:42:23,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782502295] [2021-11-06 14:42:23,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:42:23,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:42:23,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:42:23,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:42:23,146 INFO L87 Difference]: Start difference. First operand 25067 states and 36780 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:24,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:42:24,205 INFO L93 Difference]: Finished difference Result 71177 states and 105022 transitions. [2021-11-06 14:42:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:42:24,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-06 14:42:24,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:42:24,386 INFO L225 Difference]: With dead ends: 71177 [2021-11-06 14:42:24,386 INFO L226 Difference]: Without dead ends: 46171 [2021-11-06 14:42:24,450 INFO L786 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 [2021-11-06 14:42:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46171 states. [2021-11-06 14:42:25,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46171 to 46117. [2021-11-06 14:42:25,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46117 states, 45520 states have (on average 1.4785149384885765) internal successors, (67302), 45544 states have internal predecessors, (67302), 380 states have call successors, (380), 216 states have call predecessors, (380), 216 states have return successors, (570), 372 states have call predecessors, (570), 380 states have call successors, (570) [2021-11-06 14:42:25,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46117 states to 46117 states and 68252 transitions. [2021-11-06 14:42:25,607 INFO L78 Accepts]: Start accepts. Automaton has 46117 states and 68252 transitions. Word has length 108 [2021-11-06 14:42:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:42:25,608 INFO L470 AbstractCegarLoop]: Abstraction has 46117 states and 68252 transitions. [2021-11-06 14:42:25,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 46117 states and 68252 transitions. [2021-11-06 14:42:25,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-06 14:42:25,661 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:42:25,661 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 14:42:25,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 14:42:25,661 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:42:25,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:42:25,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1771568411, now seen corresponding path program 1 times [2021-11-06 14:42:25,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:42:25,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813654276] [2021-11-06 14:42:25,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:42:25,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:42:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-06 14:42:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:25,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-06 14:42:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-06 14:42:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-06 14:42:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:42:26,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:42:26,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813654276] [2021-11-06 14:42:26,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813654276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:42:26,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:42:26,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 14:42:26,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136598170] [2021-11-06 14:42:26,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 14:42:26,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:42:26,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 14:42:26,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 14:42:26,104 INFO L87 Difference]: Start difference. First operand 46117 states and 68252 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-06 14:42:39,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:42:39,330 INFO L93 Difference]: Finished difference Result 113935 states and 168662 transitions. [2021-11-06 14:42:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 14:42:39,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 134 [2021-11-06 14:42:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:42:39,682 INFO L225 Difference]: With dead ends: 113935 [2021-11-06 14:42:39,682 INFO L226 Difference]: Without dead ends: 67879 [2021-11-06 14:42:39,799 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 14:42:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67879 states. [2021-11-06 14:42:40,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67879 to 65467. [2021-11-06 14:42:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65467 states, 64494 states have (on average 1.46317486898006) internal successors, (94366), 64566 states have internal predecessors, (94366), 558 states have call successors, (558), 324 states have call predecessors, (558), 414 states have return successors, (994), 600 states have call predecessors, (994), 558 states have call successors, (994) [2021-11-06 14:42:41,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65467 states to 65467 states and 95918 transitions. [2021-11-06 14:42:41,406 INFO L78 Accepts]: Start accepts. Automaton has 65467 states and 95918 transitions. Word has length 134 [2021-11-06 14:42:41,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:42:41,407 INFO L470 AbstractCegarLoop]: Abstraction has 65467 states and 95918 transitions. [2021-11-06 14:42:41,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-06 14:42:41,407 INFO L276 IsEmpty]: Start isEmpty. Operand 65467 states and 95918 transitions. [2021-11-06 14:42:41,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-06 14:42:41,452 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:42:41,452 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:42:41,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 14:42:41,452 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:42:41,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:42:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1472630836, now seen corresponding path program 1 times [2021-11-06 14:42:41,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:42:41,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096105468] [2021-11-06 14:42:41,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:42:41,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:42:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:42:41,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:42:41,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096105468] [2021-11-06 14:42:41,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096105468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:42:41,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:42:41,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 14:42:41,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697404562] [2021-11-06 14:42:41,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 14:42:41,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:42:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 14:42:41,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 14:42:41,671 INFO L87 Difference]: Start difference. First operand 65467 states and 95918 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:44,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:42:44,067 INFO L93 Difference]: Finished difference Result 200796 states and 295031 transitions. [2021-11-06 14:42:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 14:42:44,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-11-06 14:42:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:42:44,492 INFO L225 Difference]: With dead ends: 200796 [2021-11-06 14:42:44,492 INFO L226 Difference]: Without dead ends: 135390 [2021-11-06 14:42:44,609 INFO L786 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 [2021-11-06 14:42:44,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135390 states. [2021-11-06 14:42:46,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135390 to 65563. [2021-11-06 14:42:46,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65563 states, 64590 states have (on average 1.462486453011302) internal successors, (94462), 64662 states have internal predecessors, (94462), 558 states have call successors, (558), 324 states have call predecessors, (558), 414 states have return successors, (994), 600 states have call predecessors, (994), 558 states have call successors, (994) [2021-11-06 14:42:46,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65563 states to 65563 states and 96014 transitions. [2021-11-06 14:42:46,820 INFO L78 Accepts]: Start accepts. Automaton has 65563 states and 96014 transitions. Word has length 133 [2021-11-06 14:42:46,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:42:46,821 INFO L470 AbstractCegarLoop]: Abstraction has 65563 states and 96014 transitions. [2021-11-06 14:42:46,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:46,821 INFO L276 IsEmpty]: Start isEmpty. Operand 65563 states and 96014 transitions. [2021-11-06 14:42:46,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-06 14:42:46,855 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:42:46,855 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:42:46,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 14:42:46,855 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:42:46,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:42:46,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1926288880, now seen corresponding path program 1 times [2021-11-06 14:42:46,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:42:46,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561915896] [2021-11-06 14:42:46,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:42:46,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:42:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:47,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:42:47,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:42:47,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561915896] [2021-11-06 14:42:47,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561915896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:42:47,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:42:47,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-06 14:42:47,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512890752] [2021-11-06 14:42:47,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 14:42:47,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:42:47,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 14:42:47,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-06 14:42:47,088 INFO L87 Difference]: Start difference. First operand 65563 states and 96014 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:52,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:42:52,277 INFO L93 Difference]: Finished difference Result 246740 states and 362935 transitions. [2021-11-06 14:42:52,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-06 14:42:52,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-06 14:42:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:42:52,924 INFO L225 Difference]: With dead ends: 246740 [2021-11-06 14:42:52,925 INFO L226 Difference]: Without dead ends: 181238 [2021-11-06 14:42:53,058 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-06 14:42:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181238 states. [2021-11-06 14:42:55,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181238 to 65659. [2021-11-06 14:42:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65659 states, 64686 states have (on average 1.4618000803883375) internal successors, (94558), 64758 states have internal predecessors, (94558), 558 states have call successors, (558), 324 states have call predecessors, (558), 414 states have return successors, (994), 600 states have call predecessors, (994), 558 states have call successors, (994) [2021-11-06 14:42:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65659 states to 65659 states and 96110 transitions. [2021-11-06 14:42:55,770 INFO L78 Accepts]: Start accepts. Automaton has 65659 states and 96110 transitions. Word has length 136 [2021-11-06 14:42:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:42:55,770 INFO L470 AbstractCegarLoop]: Abstraction has 65659 states and 96110 transitions. [2021-11-06 14:42:55,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 65659 states and 96110 transitions. [2021-11-06 14:42:55,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 14:42:55,968 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:42:55,968 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:42:55,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 14:42:55,968 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:42:55,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:42:55,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1620447595, now seen corresponding path program 1 times [2021-11-06 14:42:55,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:42:55,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116196543] [2021-11-06 14:42:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:42:55,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:42:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:42:56,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 14:42:56,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:42:56,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116196543] [2021-11-06 14:42:56,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116196543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:42:56,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:42:56,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:42:56,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948679892] [2021-11-06 14:42:56,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:42:56,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:42:56,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:42:56,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:42:56,365 INFO L87 Difference]: Start difference. First operand 65659 states and 96110 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:42:57,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:42:57,909 INFO L93 Difference]: Finished difference Result 131266 states and 192159 transitions. [2021-11-06 14:42:57,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:42:57,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-06 14:42:57,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:42:58,118 INFO L225 Difference]: With dead ends: 131266 [2021-11-06 14:42:58,118 INFO L226 Difference]: Without dead ends: 65661 [2021-11-06 14:42:58,246 INFO L786 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 [2021-11-06 14:42:58,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65661 states. [2021-11-06 14:42:59,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65661 to 65661. [2021-11-06 14:43:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65661 states, 64688 states have (on average 1.4617858026218156) internal successors, (94560), 64760 states have internal predecessors, (94560), 558 states have call successors, (558), 324 states have call predecessors, (558), 414 states have return successors, (994), 600 states have call predecessors, (994), 558 states have call successors, (994) [2021-11-06 14:43:00,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65661 states to 65661 states and 96112 transitions. [2021-11-06 14:43:00,181 INFO L78 Accepts]: Start accepts. Automaton has 65661 states and 96112 transitions. Word has length 138 [2021-11-06 14:43:00,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:43:00,182 INFO L470 AbstractCegarLoop]: Abstraction has 65661 states and 96112 transitions. [2021-11-06 14:43:00,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:43:00,182 INFO L276 IsEmpty]: Start isEmpty. Operand 65661 states and 96112 transitions. [2021-11-06 14:43:00,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-06 14:43:00,216 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:43:00,217 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:43:00,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 14:43:00,217 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:43:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:43:00,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1871301679, now seen corresponding path program 1 times [2021-11-06 14:43:00,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:43:00,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192778544] [2021-11-06 14:43:00,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:43:00,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:43:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:43:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-06 14:43:00,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:43:00,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192778544] [2021-11-06 14:43:00,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192778544] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 14:43:00,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160850068] [2021-11-06 14:43:00,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:43:00,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 14:43:00,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 14:43:00,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 14:43:00,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 14:43:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:43:01,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 3495 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 14:43:01,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:43:02,209 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 14:43:02,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160850068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:43:02,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 14:43:02,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-06 14:43:02,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751423539] [2021-11-06 14:43:02,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 14:43:02,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:43:02,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 14:43:02,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-06 14:43:02,211 INFO L87 Difference]: Start difference. First operand 65661 states and 96112 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)