./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.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 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 21:03:25,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 21:03:25,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 21:03:25,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 21:03:25,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 21:03:25,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 21:03:25,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 21:03:25,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 21:03:25,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 21:03:25,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 21:03:25,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 21:03:25,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 21:03:25,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 21:03:25,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 21:03:25,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 21:03:25,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 21:03:25,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 21:03:25,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 21:03:25,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 21:03:25,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 21:03:25,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 21:03:25,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 21:03:25,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 21:03:25,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 21:03:25,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 21:03:25,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 21:03:25,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 21:03:25,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 21:03:25,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 21:03:25,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 21:03:25,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 21:03:25,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 21:03:25,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 21:03:25,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 21:03:25,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 21:03:25,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 21:03:25,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 21:03:25,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 21:03:25,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 21:03:25,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 21:03:25,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 21:03:25,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 21:03:25,499 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 21:03:25,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 21:03:25,501 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 21:03:25,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 21:03:25,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 21:03:25,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 21:03:25,503 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 21:03:25,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 21:03:25,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 21:03:25,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 21:03:25,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 21:03:25,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 21:03:25,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 21:03:25,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 21:03:25,505 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 21:03:25,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 21:03:25,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 21:03:25,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 21:03:25,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 21:03:25,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:03:25,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 21:03:25,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 21:03:25,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 21:03:25,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 21:03:25,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 21:03:25,507 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 21:03:25,507 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 21:03:25,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 21:03:25,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 21:03:25,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f [2021-11-05 21:03:25,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 21:03:25,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 21:03:25,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 21:03:25,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 21:03:25,792 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 21:03:25,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-05 21:03:25,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0756e679e/f3084665ef094d26b8da4426a1a43116/FLAG11c7e15eb [2021-11-05 21:03:26,738 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 21:03:26,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-05 21:03:26,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0756e679e/f3084665ef094d26b8da4426a1a43116/FLAG11c7e15eb [2021-11-05 21:03:27,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0756e679e/f3084665ef094d26b8da4426a1a43116 [2021-11-05 21:03:27,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 21:03:27,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 21:03:27,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 21:03:27,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 21:03:27,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 21:03:27,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:03:27" (1/1) ... [2021-11-05 21:03:27,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b3f1bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:27, skipping insertion in model container [2021-11-05 21:03:27,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:03:27" (1/1) ... [2021-11-05 21:03:27,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 21:03:27,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 21:03:35,537 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[839999,840012] [2021-11-05 21:03:35,539 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840146,840159] [2021-11-05 21:03:35,540 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840285,840298] [2021-11-05 21:03:35,540 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840443,840456] [2021-11-05 21:03:35,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:03:35,673 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 21:03:36,165 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[839999,840012] [2021-11-05 21:03:36,166 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840146,840159] [2021-11-05 21:03:36,166 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840285,840298] [2021-11-05 21:03:36,166 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840443,840456] [2021-11-05 21:03:36,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:03:36,621 INFO L208 MainTranslator]: Completed translation [2021-11-05 21:03:36,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36 WrapperNode [2021-11-05 21:03:36,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 21:03:36,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 21:03:36,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 21:03:36,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 21:03:36,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:36,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:38,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 21:03:38,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 21:03:38,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 21:03:38,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 21:03:38,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:38,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:38,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:38,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:39,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:39,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:39,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:40,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 21:03:40,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 21:03:40,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 21:03:40,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 21:03:40,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (1/1) ... [2021-11-05 21:03:40,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:03:40,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 21:03:40,200 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) [2021-11-05 21:03:40,207 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 [2021-11-05 21:03:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-05 21:03:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-05 21:03:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-05 21:03:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-05 21:03:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-05 21:03:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-05 21:03:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-05 21:03:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-05 21:03:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 21:03:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 21:03:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-05 21:03:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-05 21:03:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 21:03:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 21:03:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-05 21:03:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-05 21:03:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-05 21:03:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-05 21:03:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 21:03:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 21:03:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 21:03:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 21:03:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-05 21:03:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-05 21:03:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-05 21:03:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-05 21:03:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-05 21:03:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-05 21:03:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 21:03:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-05 21:03:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-05 21:03:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 21:03:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-05 21:03:40,232 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-05 21:03:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-05 21:03:40,233 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-05 21:03:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-05 21:03:40,233 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-05 21:03:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 21:03:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-05 21:03:40,233 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-05 21:03:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-05 21:03:40,234 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-05 21:03:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-05 21:03:40,234 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-05 21:03:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-05 21:03:40,234 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-05 21:03:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-05 21:03:40,234 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-05 21:03:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 21:03:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-05 21:03:40,235 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-05 21:03:40,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 21:03:40,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 21:03:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-05 21:03:40,236 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-05 21:03:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-05 21:03:40,236 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-05 21:03:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-05 21:03:40,237 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-05 21:03:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-05 21:03:40,237 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-05 21:03:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-05 21:03:40,237 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-05 21:03:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-05 21:03:40,237 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-05 21:03:40,238 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-05 21:03:40,238 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-05 21:03:40,238 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 21:03:40,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 21:03:40,238 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-05 21:03:40,238 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-05 21:03:40,238 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-05 21:03:40,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-05 21:03:40,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 21:03:40,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 21:03:40,239 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-05 21:03:40,239 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-05 21:03:40,239 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-05 21:03:40,239 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-05 21:03:40,239 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-05 21:03:40,239 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-05 21:03:40,239 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-05 21:03:40,240 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-05 21:03:40,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 21:03:40,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 21:03:40,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 21:03:40,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-05 21:03:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-05 21:03:40,241 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-05 21:03:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-05 21:05:24,788 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0; [2021-11-05 21:05:24,788 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 21:05:24,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 21:05:24,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 21:05:24,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 21:05:24,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0; [2021-11-05 21:05:24,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0; [2021-11-05 21:05:24,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0; [2021-11-05 21:05:24,790 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0; [2021-11-05 21:05:24,790 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-05 21:05:24,790 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0; [2021-11-05 21:05:24,790 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0; [2021-11-05 21:05:24,790 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0; [2021-11-05 21:05:24,790 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-05 21:05:24,790 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-05 21:05:24,790 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 21:05:24,791 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-05 21:05:24,792 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 21:05:24,792 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-05 21:05:24,792 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0; [2021-11-05 21:05:24,792 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-05 21:05:24,792 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0; [2021-11-05 21:05:24,793 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0; [2021-11-05 21:05:24,793 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 21:05:24,793 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 21:05:24,908 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 21:05:24,925 INFO L299 CfgBuilder]: Removed 10579 assume(true) statements. [2021-11-05 21:05:24,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:05:24 BoogieIcfgContainer [2021-11-05 21:05:24,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 21:05:24,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 21:05:24,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 21:05:24,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 21:05:24,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 09:03:27" (1/3) ... [2021-11-05 21:05:24,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5b3f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:05:24, skipping insertion in model container [2021-11-05 21:05:24,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:36" (2/3) ... [2021-11-05 21:05:24,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5b3f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:05:24, skipping insertion in model container [2021-11-05 21:05:24,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:05:24" (3/3) ... [2021-11-05 21:05:24,953 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-05 21:05:24,957 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 21:05:24,958 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-05 21:05:25,037 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 21:05:25,046 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 [2021-11-05 21:05:25,046 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-05 21:05:25,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 10930 states, 10753 states have (on average 1.3876127592299823) internal successors, (14921), 10767 states have internal predecessors, (14921), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) [2021-11-05 21:05:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-05 21:05:25,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:05:25,204 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:05:25,205 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 21:05:25,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:05:25,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1811077279, now seen corresponding path program 1 times [2021-11-05 21:05:25,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:05:25,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446454625] [2021-11-05 21:05:25,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:05:25,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:05:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:05:27,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:05:27,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:05:27,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446454625] [2021-11-05 21:05:27,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446454625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:05:27,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:05:27,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:05:27,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692524112] [2021-11-05 21:05:27,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:05:27,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 21:05:27,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:05:27,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 21:05:27,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:05:27,200 INFO L87 Difference]: Start difference. First operand has 10930 states, 10753 states have (on average 1.3876127592299823) internal successors, (14921), 10767 states have internal predecessors, (14921), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2021-11-05 21:05:29,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:05:30,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:05:30,523 INFO L93 Difference]: Finished difference Result 31022 states and 43529 transitions. [2021-11-05 21:05:30,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 21:05:30,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 254 [2021-11-05 21:05:30,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:05:30,679 INFO L225 Difference]: With dead ends: 31022 [2021-11-05 21:05:30,679 INFO L226 Difference]: Without dead ends: 20300 [2021-11-05 21:05:30,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:05:30,757 INFO L933 BasicCegarLoop]: 15234 mSDtfsCounter, 13941 mSDsluCounter, 15039 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2430.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13941 SdHoareTripleChecker+Valid, 30273 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 73.74ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2545.30ms IncrementalHoareTripleChecker+Time [2021-11-05 21:05:30,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13941 Valid, 30273 Invalid, 84 Unknown, 0 Unchecked, 73.74ms Time], IncrementalHoareTripleChecker [17 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2545.30ms Time] [2021-11-05 21:05:30,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20300 states. [2021-11-05 21:05:31,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20300 to 20294. [2021-11-05 21:05:31,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20294 states, 19946 states have (on average 1.3689461546174673) internal successors, (27305), 19969 states have internal predecessors, (27305), 268 states have call successors, (268), 74 states have call predecessors, (268), 74 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2021-11-05 21:05:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20294 states to 20294 states and 27841 transitions. [2021-11-05 21:05:31,373 INFO L78 Accepts]: Start accepts. Automaton has 20294 states and 27841 transitions. Word has length 254 [2021-11-05 21:05:31,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:05:31,374 INFO L470 AbstractCegarLoop]: Abstraction has 20294 states and 27841 transitions. [2021-11-05 21:05:31,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2021-11-05 21:05:31,375 INFO L276 IsEmpty]: Start isEmpty. Operand 20294 states and 27841 transitions. [2021-11-05 21:05:31,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-05 21:05:31,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:05:31,383 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:05:31,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 21:05:31,384 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 21:05:31,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:05:31,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1799677888, now seen corresponding path program 1 times [2021-11-05 21:05:31,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:05:31,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984421474] [2021-11-05 21:05:31,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:05:31,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:05:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:05:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:05:32,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:05:32,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984421474] [2021-11-05 21:05:32,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984421474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:05:32,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:05:32,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:05:32,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683355156] [2021-11-05 21:05:32,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:05:32,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 21:05:32,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:05:32,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 21:05:32,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:05:32,737 INFO L87 Difference]: Start difference. First operand 20294 states and 27841 transitions. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2021-11-05 21:05:35,116 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:05:35,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:05:35,905 INFO L93 Difference]: Finished difference Result 49623 states and 68314 transitions. [2021-11-05 21:05:35,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 21:05:35,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 273 [2021-11-05 21:05:35,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:05:36,081 INFO L225 Difference]: With dead ends: 49623 [2021-11-05 21:05:36,081 INFO L226 Difference]: Without dead ends: 29973 [2021-11-05 21:05:36,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.90ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:05:36,220 INFO L933 BasicCegarLoop]: 14464 mSDtfsCounter, 13453 mSDsluCounter, 14289 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2431.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13453 SdHoareTripleChecker+Valid, 28753 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.04ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2548.17ms IncrementalHoareTripleChecker+Time [2021-11-05 21:05:36,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13453 Valid, 28753 Invalid, 74 Unknown, 0 Unchecked, 44.04ms Time], IncrementalHoareTripleChecker [12 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 2548.17ms Time] [2021-11-05 21:05:36,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29973 states. [2021-11-05 21:05:37,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29973 to 29945. [2021-11-05 21:05:37,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29945 states, 29442 states have (on average 1.371578017797704) internal successors, (40382), 29474 states have internal predecessors, (40382), 386 states have call successors, (386), 111 states have call predecessors, (386), 111 states have return successors, (386), 380 states have call predecessors, (386), 386 states have call successors, (386) [2021-11-05 21:05:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29945 states to 29945 states and 41154 transitions. [2021-11-05 21:05:37,226 INFO L78 Accepts]: Start accepts. Automaton has 29945 states and 41154 transitions. Word has length 273 [2021-11-05 21:05:37,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:05:37,228 INFO L470 AbstractCegarLoop]: Abstraction has 29945 states and 41154 transitions. [2021-11-05 21:05:37,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2021-11-05 21:05:37,229 INFO L276 IsEmpty]: Start isEmpty. Operand 29945 states and 41154 transitions. [2021-11-05 21:05:37,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-05 21:05:37,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:05:37,242 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:05:37,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 21:05:37,243 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 21:05:37,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:05:37,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1932344816, now seen corresponding path program 1 times [2021-11-05 21:05:37,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:05:37,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855847495] [2021-11-05 21:05:37,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:05:37,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:05:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:05:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-05 21:05:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:05:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:05:38,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:05:38,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855847495] [2021-11-05 21:05:38,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855847495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:05:38,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:05:38,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 21:05:38,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266085405] [2021-11-05 21:05:38,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:05:38,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:05:38,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:05:38,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:05:38,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:05:38,487 INFO L87 Difference]: Start difference. First operand 29945 states and 41154 transitions. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 3 states have internal predecessors, (285), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-05 21:05:40,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:05:42,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:05:50,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:03,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:05,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:09,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:11,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:13,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:15,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:20,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:06:20,719 INFO L93 Difference]: Finished difference Result 81581 states and 112889 transitions. [2021-11-05 21:06:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 21:06:20,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 3 states have internal predecessors, (285), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 287 [2021-11-05 21:06:20,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:06:21,018 INFO L225 Difference]: With dead ends: 81581 [2021-11-05 21:06:21,019 INFO L226 Difference]: Without dead ends: 52280 [2021-11-05 21:06:21,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 131.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:06:21,142 INFO L933 BasicCegarLoop]: 14554 mSDtfsCounter, 16496 mSDsluCounter, 24273 mSDsCounter, 0 mSdLazyCounter, 5047 mSolverCounterSat, 524 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37347.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16519 SdHoareTripleChecker+Valid, 38827 SdHoareTripleChecker+Invalid, 5580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 189.92ms SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 5047 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40215.66ms IncrementalHoareTripleChecker+Time [2021-11-05 21:06:21,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16519 Valid, 38827 Invalid, 5580 Unknown, 0 Unchecked, 189.92ms Time], IncrementalHoareTripleChecker [524 Valid, 5047 Invalid, 9 Unknown, 0 Unchecked, 40215.66ms Time] [2021-11-05 21:06:21,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52280 states. [2021-11-05 21:06:22,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52280 to 49176. [2021-11-05 21:06:22,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49176 states, 48357 states have (on average 1.374464917178485) internal successors, (66465), 48407 states have internal predecessors, (66465), 628 states have call successors, (628), 185 states have call predecessors, (628), 185 states have return successors, (628), 618 states have call predecessors, (628), 628 states have call successors, (628) [2021-11-05 21:06:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49176 states to 49176 states and 67721 transitions. [2021-11-05 21:06:22,852 INFO L78 Accepts]: Start accepts. Automaton has 49176 states and 67721 transitions. Word has length 287 [2021-11-05 21:06:22,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:06:22,853 INFO L470 AbstractCegarLoop]: Abstraction has 49176 states and 67721 transitions. [2021-11-05 21:06:22,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 3 states have internal predecessors, (285), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-05 21:06:22,854 INFO L276 IsEmpty]: Start isEmpty. Operand 49176 states and 67721 transitions. [2021-11-05 21:06:22,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-05 21:06:22,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:06:22,868 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:06:22,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 21:06:22,869 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 21:06:22,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:06:22,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1753334161, now seen corresponding path program 1 times [2021-11-05 21:06:22,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:06:22,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289760763] [2021-11-05 21:06:22,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:06:22,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:06:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:06:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:06:24,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:06:24,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289760763] [2021-11-05 21:06:24,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289760763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:06:24,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:06:24,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:06:24,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431668085] [2021-11-05 21:06:24,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:06:24,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 21:06:24,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:06:24,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 21:06:24,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:06:24,057 INFO L87 Difference]: Start difference. First operand 49176 states and 67721 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2021-11-05 21:06:26,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:28,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:06:28,519 INFO L93 Difference]: Finished difference Result 126810 states and 174970 transitions. [2021-11-05 21:06:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 21:06:28,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 290 [2021-11-05 21:06:28,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:06:29,034 INFO L225 Difference]: With dead ends: 126810 [2021-11-05 21:06:29,035 INFO L226 Difference]: Without dead ends: 87836 [2021-11-05 21:06:29,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:06:29,149 INFO L933 BasicCegarLoop]: 27826 mSDtfsCounter, 13499 mSDsluCounter, 14287 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2470.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13499 SdHoareTripleChecker+Valid, 42113 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.03ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2586.07ms IncrementalHoareTripleChecker+Time [2021-11-05 21:06:29,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13499 Valid, 42113 Invalid, 80 Unknown, 0 Unchecked, 33.03ms Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2586.07ms Time] [2021-11-05 21:06:29,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87836 states. [2021-11-05 21:06:31,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87836 to 87830. [2021-11-05 21:06:31,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87830 states, 86355 states have (on average 1.3761681431301025) internal successors, (118839), 86441 states have internal predecessors, (118839), 1136 states have call successors, (1136), 333 states have call predecessors, (1136), 333 states have return successors, (1136), 1118 states have call predecessors, (1136), 1136 states have call successors, (1136) [2021-11-05 21:06:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87830 states to 87830 states and 121111 transitions. [2021-11-05 21:06:31,862 INFO L78 Accepts]: Start accepts. Automaton has 87830 states and 121111 transitions. Word has length 290 [2021-11-05 21:06:31,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:06:31,863 INFO L470 AbstractCegarLoop]: Abstraction has 87830 states and 121111 transitions. [2021-11-05 21:06:31,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2021-11-05 21:06:31,865 INFO L276 IsEmpty]: Start isEmpty. Operand 87830 states and 121111 transitions. [2021-11-05 21:06:31,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-05 21:06:31,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:06:31,882 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:06:31,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 21:06:31,883 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 21:06:31,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:06:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1840568557, now seen corresponding path program 1 times [2021-11-05 21:06:31,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:06:31,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011559417] [2021-11-05 21:06:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:06:31,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:06:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:06:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:06:33,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:06:33,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011559417] [2021-11-05 21:06:33,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011559417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:06:33,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:06:33,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:06:33,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025781702] [2021-11-05 21:06:33,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:06:33,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 21:06:33,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:06:33,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 21:06:33,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:06:33,122 INFO L87 Difference]: Start difference. First operand 87830 states and 121111 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2021-11-05 21:06:35,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:38,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:06:38,497 INFO L93 Difference]: Finished difference Result 204122 states and 281758 transitions. [2021-11-05 21:06:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 21:06:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 290 [2021-11-05 21:06:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:06:39,110 INFO L225 Difference]: With dead ends: 204122 [2021-11-05 21:06:39,110 INFO L226 Difference]: Without dead ends: 126494 [2021-11-05 21:06:39,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:06:39,332 INFO L933 BasicCegarLoop]: 27826 mSDtfsCounter, 13501 mSDsluCounter, 14286 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2444.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13501 SdHoareTripleChecker+Valid, 42112 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.85ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2547.45ms IncrementalHoareTripleChecker+Time [2021-11-05 21:06:39,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13501 Valid, 42112 Invalid, 82 Unknown, 0 Unchecked, 30.85ms Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2547.45ms Time] [2021-11-05 21:06:39,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126494 states. [2021-11-05 21:06:42,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126494 to 126437. [2021-11-05 21:06:42,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126437 states, 124306 states have (on average 1.3769729538397182) internal successors, (171166), 124428 states have internal predecessors, (171166), 1644 states have call successors, (1644), 481 states have call predecessors, (1644), 481 states have return successors, (1644), 1618 states have call predecessors, (1644), 1644 states have call successors, (1644) [2021-11-05 21:06:43,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126437 states to 126437 states and 174454 transitions. [2021-11-05 21:06:43,245 INFO L78 Accepts]: Start accepts. Automaton has 126437 states and 174454 transitions. Word has length 290 [2021-11-05 21:06:43,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:06:43,246 INFO L470 AbstractCegarLoop]: Abstraction has 126437 states and 174454 transitions. [2021-11-05 21:06:43,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2021-11-05 21:06:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 126437 states and 174454 transitions. [2021-11-05 21:06:43,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-11-05 21:06:43,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:06:43,270 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:06:43,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 21:06:43,271 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 21:06:43,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:06:43,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1899315257, now seen corresponding path program 1 times [2021-11-05 21:06:43,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:06:43,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379523952] [2021-11-05 21:06:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:06:43,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:06:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:06:44,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-05 21:06:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:06:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:06:44,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:06:44,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379523952] [2021-11-05 21:06:44,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379523952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:06:44,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:06:44,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 21:06:44,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49106591] [2021-11-05 21:06:44,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:06:44,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:06:44,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:06:44,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:06:44,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:06:44,779 INFO L87 Difference]: Start difference. First operand 126437 states and 174454 transitions. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-05 21:06:47,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:49,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:06:52,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:07:08,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:07:15,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:07:19,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:07:21,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:07:23,719 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:07:25,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:07:31,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:07:31,044 INFO L93 Difference]: Finished difference Result 382895 states and 530956 transitions. [2021-11-05 21:07:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 21:07:31,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 292 [2021-11-05 21:07:31,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:07:32,708 INFO L225 Difference]: With dead ends: 382895 [2021-11-05 21:07:32,708 INFO L226 Difference]: Without dead ends: 257102 [2021-11-05 21:07:33,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 146.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:07:33,134 INFO L933 BasicCegarLoop]: 14437 mSDtfsCounter, 16708 mSDsluCounter, 24190 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 525 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35926.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16731 SdHoareTripleChecker+Valid, 38627 SdHoareTripleChecker+Invalid, 5489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 157.05ms SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38790.36ms IncrementalHoareTripleChecker+Time [2021-11-05 21:07:33,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16731 Valid, 38627 Invalid, 5489 Unknown, 0 Unchecked, 157.05ms Time], IncrementalHoareTripleChecker [525 Valid, 4957 Invalid, 7 Unknown, 0 Unchecked, 38790.36ms Time] [2021-11-05 21:07:33,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257102 states. [2021-11-05 21:07:39,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257102 to 241689. [2021-11-05 21:07:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241689 states, 237616 states have (on average 1.377895427917312) internal successors, (327410), 237846 states have internal predecessors, (327410), 3142 states have call successors, (3142), 925 states have call predecessors, (3142), 925 states have return successors, (3142), 3092 states have call predecessors, (3142), 3142 states have call successors, (3142) [2021-11-05 21:07:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241689 states to 241689 states and 333694 transitions. [2021-11-05 21:07:40,702 INFO L78 Accepts]: Start accepts. Automaton has 241689 states and 333694 transitions. Word has length 292 [2021-11-05 21:07:40,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:07:40,702 INFO L470 AbstractCegarLoop]: Abstraction has 241689 states and 333694 transitions. [2021-11-05 21:07:40,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-05 21:07:40,703 INFO L276 IsEmpty]: Start isEmpty. Operand 241689 states and 333694 transitions. [2021-11-05 21:07:40,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-05 21:07:40,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:07:40,722 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:07:40,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 21:07:40,723 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 21:07:40,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:07:40,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1573197835, now seen corresponding path program 1 times [2021-11-05 21:07:40,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:07:40,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155676054] [2021-11-05 21:07:40,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:07:40,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:07:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:07:42,236 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-05 21:07:42,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:07:42,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155676054] [2021-11-05 21:07:42,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155676054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:07:42,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:07:42,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 21:07:42,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584529397] [2021-11-05 21:07:42,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:07:42,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:07:42,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:07:42,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:07:42,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:07:42,238 INFO L87 Difference]: Start difference. First operand 241689 states and 333694 transitions. Second operand has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 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)