./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 21:31:29,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 21:31:29,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 21:31:29,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 21:31:29,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 21:31:29,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 21:31:29,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 21:31:29,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 21:31:29,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 21:31:29,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 21:31:29,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 21:31:29,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 21:31:29,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 21:31:29,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 21:31:29,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 21:31:29,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 21:31:29,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 21:31:29,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 21:31:29,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 21:31:29,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 21:31:29,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 21:31:29,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 21:31:29,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 21:31:29,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 21:31:29,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 21:31:29,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 21:31:29,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 21:31:29,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 21:31:29,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 21:31:29,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 21:31:29,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 21:31:29,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 21:31:29,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 21:31:29,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 21:31:29,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 21:31:29,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 21:31:29,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 21:31:29,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 21:31:29,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 21:31:29,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 21:31:29,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 21:31:29,427 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 21:31:29,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 21:31:29,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 21:31:29,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 21:31:29,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 21:31:29,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 21:31:29,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 21:31:29,450 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 21:31:29,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 21:31:29,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 21:31:29,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 21:31:29,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 21:31:29,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 21:31:29,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 21:31:29,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 21:31:29,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 21:31:29,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 21:31:29,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 21:31:29,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 21:31:29,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 21:31:29,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 21:31:29,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 21:31:29,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 21:31:29,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 21:31:29,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 21:31:29,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 21:31:29,453 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 21:31:29,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 21:31:29,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 21:31:29,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 21:31:29,454 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a [2021-11-02 21:31:29,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 21:31:29,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 21:31:29,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 21:31:29,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 21:31:29,653 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 21:31:29,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2021-11-02 21:31:29,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd184d15e/31ea0080b99a4ac8b415d8d8b50b807c/FLAG576745bf0 [2021-11-02 21:31:30,251 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 21:31:30,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2021-11-02 21:31:30,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd184d15e/31ea0080b99a4ac8b415d8d8b50b807c/FLAG576745bf0 [2021-11-02 21:31:30,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd184d15e/31ea0080b99a4ac8b415d8d8b50b807c [2021-11-02 21:31:30,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 21:31:30,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 21:31:30,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 21:31:30,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 21:31:30,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 21:31:30,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:31:30" (1/1) ... [2021-11-02 21:31:30,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8ea70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:30, skipping insertion in model container [2021-11-02 21:31:30,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:31:30" (1/1) ... [2021-11-02 21:31:30,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 21:31:30,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 21:31:31,423 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2021-11-02 21:31:31,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 21:31:31,513 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 21:31:31,640 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2021-11-02 21:31:31,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 21:31:31,730 INFO L208 MainTranslator]: Completed translation [2021-11-02 21:31:31,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31 WrapperNode [2021-11-02 21:31:31,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 21:31:31,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 21:31:31,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 21:31:31,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 21:31:31,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:31,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:32,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 21:31:32,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 21:31:32,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 21:31:32,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 21:31:32,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:32,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:32,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:32,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:32,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:32,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:32,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:32,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 21:31:32,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 21:31:32,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 21:31:32,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 21:31:32,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (1/1) ... [2021-11-02 21:31:32,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 21:31:32,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 21:31:32,833 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) [2021-11-02 21:31:32,873 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 [2021-11-02 21:31:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 21:31:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 21:31:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 21:31:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 21:31:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 21:31:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 21:31:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 21:31:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 21:31:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 21:31:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 21:31:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 21:31:35,401 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 21:31:35,401 INFO L299 CfgBuilder]: Removed 3868 assume(true) statements. [2021-11-02 21:31:35,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:31:35 BoogieIcfgContainer [2021-11-02 21:31:35,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 21:31:35,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 21:31:35,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 21:31:35,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 21:31:35,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:31:30" (1/3) ... [2021-11-02 21:31:35,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b841aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:31:35, skipping insertion in model container [2021-11-02 21:31:35,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:31:31" (2/3) ... [2021-11-02 21:31:35,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b841aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:31:35, skipping insertion in model container [2021-11-02 21:31:35,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:31:35" (3/3) ... [2021-11-02 21:31:35,410 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2021-11-02 21:31:35,414 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 21:31:35,414 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 131 error locations. [2021-11-02 21:31:35,452 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 21:31:35,456 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 [2021-11-02 21:31:35,457 INFO L340 AbstractCegarLoop]: Starting to check reachability of 131 error locations. [2021-11-02 21:31:35,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 4211 states, 4079 states have (on average 1.4376072566805589) internal successors, (5864), 4210 states have internal predecessors, (5864), 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) [2021-11-02 21:31:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-02 21:31:35,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:31:35,503 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] [2021-11-02 21:31:35,504 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:31:35,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:31:35,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1726912436, now seen corresponding path program 1 times [2021-11-02 21:31:35,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:31:35,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549567156] [2021-11-02 21:31:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:31:35,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:31:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:31:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 21:31:35,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:31:35,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549567156] [2021-11-02 21:31:35,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549567156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:31:35,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:31:35,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 21:31:35,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559984999] [2021-11-02 21:31:35,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 21:31:35,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:31:35,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 21:31:35,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 21:31:35,842 INFO L87 Difference]: Start difference. First operand has 4211 states, 4079 states have (on average 1.4376072566805589) internal successors, (5864), 4210 states have internal predecessors, (5864), 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) Second operand has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-11-02 21:31:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:31:41,128 INFO L93 Difference]: Finished difference Result 8418 states and 11723 transitions. [2021-11-02 21:31:41,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 21:31:41,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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 93 [2021-11-02 21:31:41,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:31:41,161 INFO L225 Difference]: With dead ends: 8418 [2021-11-02 21:31:41,161 INFO L226 Difference]: Without dead ends: 4198 [2021-11-02 21:31:41,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 21:31:41,179 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5579 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4008.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 5579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4940.19ms IncrementalHoareTripleChecker+Time [2021-11-02 21:31:41,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 5579 Unknown, 0 Unchecked, 11.13ms Time], IncrementalHoareTripleChecker [0 Valid, 5579 Invalid, 0 Unknown, 0 Unchecked, 4940.19ms Time] [2021-11-02 21:31:41,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2021-11-02 21:31:41,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 4198. [2021-11-02 21:31:41,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4198 states, 4067 states have (on average 1.368576346201131) internal successors, (5566), 4197 states have internal predecessors, (5566), 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) [2021-11-02 21:31:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4198 states to 4198 states and 5566 transitions. [2021-11-02 21:31:41,296 INFO L78 Accepts]: Start accepts. Automaton has 4198 states and 5566 transitions. Word has length 93 [2021-11-02 21:31:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:31:41,297 INFO L470 AbstractCegarLoop]: Abstraction has 4198 states and 5566 transitions. [2021-11-02 21:31:41,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-11-02 21:31:41,297 INFO L276 IsEmpty]: Start isEmpty. Operand 4198 states and 5566 transitions. [2021-11-02 21:31:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-02 21:31:41,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:31:41,304 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] [2021-11-02 21:31:41,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 21:31:41,305 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:31:41,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:31:41,307 INFO L85 PathProgramCache]: Analyzing trace with hash 590752870, now seen corresponding path program 1 times [2021-11-02 21:31:41,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:31:41,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217733379] [2021-11-02 21:31:41,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:31:41,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:31:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:31:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 21:31:41,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:31:41,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217733379] [2021-11-02 21:31:41,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217733379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:31:41,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:31:41,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:31:41,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667032589] [2021-11-02 21:31:41,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:31:41,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:31:41,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:31:41,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:31:41,496 INFO L87 Difference]: Start difference. First operand 4198 states and 5566 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-02 21:31:48,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:31:48,235 INFO L93 Difference]: Finished difference Result 8368 states and 11111 transitions. [2021-11-02 21:31:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:31:48,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2021-11-02 21:31:48,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:31:48,257 INFO L225 Difference]: With dead ends: 8368 [2021-11-02 21:31:48,257 INFO L226 Difference]: Without dead ends: 4206 [2021-11-02 21:31:48,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:31:48,263 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 5500 mSDsCounter, 0 mSdLazyCounter, 11124 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5532.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.38ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 11124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6559.06ms IncrementalHoareTripleChecker+Time [2021-11-02 21:31:48,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11138 Unknown, 0 Unchecked, 16.38ms Time], IncrementalHoareTripleChecker [14 Valid, 11124 Invalid, 0 Unknown, 0 Unchecked, 6559.06ms Time] [2021-11-02 21:31:48,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2021-11-02 21:31:48,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 4206. [2021-11-02 21:31:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4206 states, 4075 states have (on average 1.3678527607361963) internal successors, (5574), 4205 states have internal predecessors, (5574), 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) [2021-11-02 21:31:48,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4206 states to 4206 states and 5574 transitions. [2021-11-02 21:31:48,319 INFO L78 Accepts]: Start accepts. Automaton has 4206 states and 5574 transitions. Word has length 93 [2021-11-02 21:31:48,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:31:48,319 INFO L470 AbstractCegarLoop]: Abstraction has 4206 states and 5574 transitions. [2021-11-02 21:31:48,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-02 21:31:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4206 states and 5574 transitions. [2021-11-02 21:31:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-02 21:31:48,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:31:48,321 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] [2021-11-02 21:31:48,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 21:31:48,321 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:31:48,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:31:48,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1632669096, now seen corresponding path program 1 times [2021-11-02 21:31:48,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:31:48,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805314059] [2021-11-02 21:31:48,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:31:48,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:31:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:31:48,446 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-02 21:31:48,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:31:48,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805314059] [2021-11-02 21:31:48,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805314059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:31:48,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:31:48,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:31:48,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463768085] [2021-11-02 21:31:48,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:31:48,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:31:48,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:31:48,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:31:48,452 INFO L87 Difference]: Start difference. First operand 4206 states and 5574 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-02 21:31:55,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:31:55,216 INFO L93 Difference]: Finished difference Result 8378 states and 11124 transitions. [2021-11-02 21:31:55,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:31:55,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2021-11-02 21:31:55,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:31:55,237 INFO L225 Difference]: With dead ends: 8378 [2021-11-02 21:31:55,237 INFO L226 Difference]: Without dead ends: 4220 [2021-11-02 21:31:55,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:31:55,249 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 5500 mSDsCounter, 0 mSdLazyCounter, 11118 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5571.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.95ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 11118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6616.18ms IncrementalHoareTripleChecker+Time [2021-11-02 21:31:55,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11144 Unknown, 0 Unchecked, 11.95ms Time], IncrementalHoareTripleChecker [26 Valid, 11118 Invalid, 0 Unknown, 0 Unchecked, 6616.18ms Time] [2021-11-02 21:31:55,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2021-11-02 21:31:55,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 4220. [2021-11-02 21:31:55,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4220 states, 4089 states have (on average 1.3665932990951333) internal successors, (5588), 4219 states have internal predecessors, (5588), 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) [2021-11-02 21:31:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4220 states to 4220 states and 5588 transitions. [2021-11-02 21:31:55,330 INFO L78 Accepts]: Start accepts. Automaton has 4220 states and 5588 transitions. Word has length 101 [2021-11-02 21:31:55,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:31:55,331 INFO L470 AbstractCegarLoop]: Abstraction has 4220 states and 5588 transitions. [2021-11-02 21:31:55,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-02 21:31:55,331 INFO L276 IsEmpty]: Start isEmpty. Operand 4220 states and 5588 transitions. [2021-11-02 21:31:55,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-02 21:31:55,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:31:55,333 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] [2021-11-02 21:31:55,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 21:31:55,333 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:31:55,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:31:55,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1235769430, now seen corresponding path program 1 times [2021-11-02 21:31:55,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:31:55,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110322965] [2021-11-02 21:31:55,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:31:55,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:31:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:31:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 21:31:55,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:31:55,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110322965] [2021-11-02 21:31:55,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110322965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:31:55,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:31:55,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:31:55,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604498544] [2021-11-02 21:31:55,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:31:55,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:31:55,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:31:55,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:31:55,463 INFO L87 Difference]: Start difference. First operand 4220 states and 5588 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2021-11-02 21:32:04,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:32:05,000 INFO L93 Difference]: Finished difference Result 12347 states and 16386 transitions. [2021-11-02 21:32:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:32:05,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 109 [2021-11-02 21:32:05,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:32:05,023 INFO L225 Difference]: With dead ends: 12347 [2021-11-02 21:32:05,024 INFO L226 Difference]: Without dead ends: 8226 [2021-11-02 21:32:05,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:05,032 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5411 mSDsluCounter, 5458 mSDsCounter, 0 mSdLazyCounter, 11032 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7686.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5411 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.25ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9237.18ms IncrementalHoareTripleChecker+Time [2021-11-02 21:32:05,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5411 Valid, 0 Invalid, 11034 Unknown, 0 Unchecked, 19.25ms Time], IncrementalHoareTripleChecker [2 Valid, 11032 Invalid, 0 Unknown, 0 Unchecked, 9237.18ms Time] [2021-11-02 21:32:05,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8226 states. [2021-11-02 21:32:05,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8226 to 7949. [2021-11-02 21:32:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7949 states, 7818 states have (on average 1.3763110770017908) internal successors, (10760), 7948 states have internal predecessors, (10760), 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) [2021-11-02 21:32:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7949 states to 7949 states and 10760 transitions. [2021-11-02 21:32:05,177 INFO L78 Accepts]: Start accepts. Automaton has 7949 states and 10760 transitions. Word has length 109 [2021-11-02 21:32:05,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:32:05,177 INFO L470 AbstractCegarLoop]: Abstraction has 7949 states and 10760 transitions. [2021-11-02 21:32:05,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2021-11-02 21:32:05,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7949 states and 10760 transitions. [2021-11-02 21:32:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-02 21:32:05,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:32:05,179 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] [2021-11-02 21:32:05,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 21:32:05,180 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:32:05,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:32:05,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1555565823, now seen corresponding path program 1 times [2021-11-02 21:32:05,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:32:05,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540375834] [2021-11-02 21:32:05,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:32:05,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:32:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:32:05,414 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 21:32:05,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:32:05,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540375834] [2021-11-02 21:32:05,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540375834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:32:05,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:32:05,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:32:05,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560271954] [2021-11-02 21:32:05,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:32:05,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:32:05,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:32:05,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:05,416 INFO L87 Difference]: Start difference. First operand 7949 states and 10760 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-02 21:32:14,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:32:14,334 INFO L93 Difference]: Finished difference Result 22174 states and 30083 transitions. [2021-11-02 21:32:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:32:14,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2021-11-02 21:32:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:32:14,386 INFO L225 Difference]: With dead ends: 22174 [2021-11-02 21:32:14,387 INFO L226 Difference]: Without dead ends: 14324 [2021-11-02 21:32:14,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:14,397 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4539 mSDsluCounter, 5458 mSDsCounter, 0 mSdLazyCounter, 11154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7168.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4539 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.22ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8600.94ms IncrementalHoareTripleChecker+Time [2021-11-02 21:32:14,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4539 Valid, 0 Invalid, 11156 Unknown, 0 Unchecked, 12.22ms Time], IncrementalHoareTripleChecker [2 Valid, 11154 Invalid, 0 Unknown, 0 Unchecked, 8600.94ms Time] [2021-11-02 21:32:14,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14324 states. [2021-11-02 21:32:14,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14324 to 14109. [2021-11-02 21:32:14,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14109 states, 13978 states have (on average 1.3823150665331234) internal successors, (19322), 14108 states have internal predecessors, (19322), 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) [2021-11-02 21:32:14,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14109 states to 14109 states and 19322 transitions. [2021-11-02 21:32:14,625 INFO L78 Accepts]: Start accepts. Automaton has 14109 states and 19322 transitions. Word has length 111 [2021-11-02 21:32:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:32:14,627 INFO L470 AbstractCegarLoop]: Abstraction has 14109 states and 19322 transitions. [2021-11-02 21:32:14,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-02 21:32:14,628 INFO L276 IsEmpty]: Start isEmpty. Operand 14109 states and 19322 transitions. [2021-11-02 21:32:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 21:32:14,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:32:14,629 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] [2021-11-02 21:32:14,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 21:32:14,629 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr128ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:32:14,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:32:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1649212511, now seen corresponding path program 1 times [2021-11-02 21:32:14,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:32:14,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554807637] [2021-11-02 21:32:14,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:32:14,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:32:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:32:14,745 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 21:32:14,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:32:14,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554807637] [2021-11-02 21:32:14,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554807637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:32:14,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:32:14,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:32:14,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113172344] [2021-11-02 21:32:14,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:32:14,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:32:14,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:32:14,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:14,750 INFO L87 Difference]: Start difference. First operand 14109 states and 19322 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-02 21:32:25,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:32:25,342 INFO L93 Difference]: Finished difference Result 42057 states and 57657 transitions. [2021-11-02 21:32:25,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:32:25,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2021-11-02 21:32:25,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:32:25,406 INFO L225 Difference]: With dead ends: 42057 [2021-11-02 21:32:25,406 INFO L226 Difference]: Without dead ends: 28047 [2021-11-02 21:32:25,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:25,428 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5397 mSDsluCounter, 5551 mSDsCounter, 0 mSdLazyCounter, 12226 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8408.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5397 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.76ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10152.50ms IncrementalHoareTripleChecker+Time [2021-11-02 21:32:25,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5397 Valid, 0 Invalid, 12229 Unknown, 0 Unchecked, 13.76ms Time], IncrementalHoareTripleChecker [3 Valid, 12226 Invalid, 0 Unknown, 0 Unchecked, 10152.50ms Time] [2021-11-02 21:32:25,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28047 states. [2021-11-02 21:32:25,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28047 to 27791. [2021-11-02 21:32:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27791 states, 27660 states have (on average 1.3850325379609545) internal successors, (38310), 27790 states have internal predecessors, (38310), 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) [2021-11-02 21:32:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27791 states to 27791 states and 38310 transitions. [2021-11-02 21:32:25,824 INFO L78 Accepts]: Start accepts. Automaton has 27791 states and 38310 transitions. Word has length 113 [2021-11-02 21:32:25,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:32:25,824 INFO L470 AbstractCegarLoop]: Abstraction has 27791 states and 38310 transitions. [2021-11-02 21:32:25,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-02 21:32:25,825 INFO L276 IsEmpty]: Start isEmpty. Operand 27791 states and 38310 transitions. [2021-11-02 21:32:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 21:32:25,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:32:25,826 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] [2021-11-02 21:32:25,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 21:32:25,826 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr128ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:32:25,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:32:25,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1546329114, now seen corresponding path program 1 times [2021-11-02 21:32:25,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:32:25,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345930477] [2021-11-02 21:32:25,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:32:25,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:32:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:32:25,920 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 21:32:25,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:32:25,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345930477] [2021-11-02 21:32:25,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345930477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:32:25,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:32:25,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 21:32:25,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241010527] [2021-11-02 21:32:25,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:32:25,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:32:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:32:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:25,922 INFO L87 Difference]: Start difference. First operand 27791 states and 38310 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2021-11-02 21:32:30,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:32:30,948 INFO L93 Difference]: Finished difference Result 27791 states and 38310 transitions. [2021-11-02 21:32:30,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:32:30,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 116 [2021-11-02 21:32:30,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:32:30,999 INFO L225 Difference]: With dead ends: 27791 [2021-11-02 21:32:30,999 INFO L226 Difference]: Without dead ends: 27789 [2021-11-02 21:32:31,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:31,010 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5450 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3911.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5450 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.42ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4669.89ms IncrementalHoareTripleChecker+Time [2021-11-02 21:32:31,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5450 Valid, 0 Invalid, 5564 Unknown, 0 Unchecked, 5.42ms Time], IncrementalHoareTripleChecker [0 Valid, 5564 Invalid, 0 Unknown, 0 Unchecked, 4669.89ms Time] [2021-11-02 21:32:31,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27789 states. [2021-11-02 21:32:31,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27789 to 27789. [2021-11-02 21:32:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27789 states, 27659 states have (on average 1.3850103040601613) internal successors, (38308), 27788 states have internal predecessors, (38308), 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) [2021-11-02 21:32:31,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27789 states to 27789 states and 38308 transitions. [2021-11-02 21:32:31,487 INFO L78 Accepts]: Start accepts. Automaton has 27789 states and 38308 transitions. Word has length 116 [2021-11-02 21:32:31,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:32:31,487 INFO L470 AbstractCegarLoop]: Abstraction has 27789 states and 38308 transitions. [2021-11-02 21:32:31,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2021-11-02 21:32:31,487 INFO L276 IsEmpty]: Start isEmpty. Operand 27789 states and 38308 transitions. [2021-11-02 21:32:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-02 21:32:31,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:32:31,488 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] [2021-11-02 21:32:31,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 21:32:31,489 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr129ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:32:31,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:32:31,490 INFO L85 PathProgramCache]: Analyzing trace with hash -691542209, now seen corresponding path program 1 times [2021-11-02 21:32:31,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:32:31,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165842650] [2021-11-02 21:32:31,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:32:31,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:32:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:32:31,607 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 21:32:31,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:32:31,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165842650] [2021-11-02 21:32:31,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165842650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:32:31,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:32:31,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 21:32:31,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015541788] [2021-11-02 21:32:31,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:32:31,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:32:31,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:32:31,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:31,610 INFO L87 Difference]: Start difference. First operand 27789 states and 38308 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2021-11-02 21:32:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:32:36,630 INFO L93 Difference]: Finished difference Result 27789 states and 38308 transitions. [2021-11-02 21:32:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:32:36,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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 117 [2021-11-02 21:32:36,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:32:36,735 INFO L225 Difference]: With dead ends: 27789 [2021-11-02 21:32:36,747 INFO L226 Difference]: Without dead ends: 27787 [2021-11-02 21:32:36,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:36,760 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5447 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5562 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3854.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5447 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4677.79ms IncrementalHoareTripleChecker+Time [2021-11-02 21:32:36,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5447 Valid, 0 Invalid, 5562 Unknown, 0 Unchecked, 5.10ms Time], IncrementalHoareTripleChecker [0 Valid, 5562 Invalid, 0 Unknown, 0 Unchecked, 4677.79ms Time] [2021-11-02 21:32:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27787 states. [2021-11-02 21:32:37,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27787 to 27787. [2021-11-02 21:32:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27787 states, 27658 states have (on average 1.3849880685515945) internal successors, (38306), 27786 states have internal predecessors, (38306), 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) [2021-11-02 21:32:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27787 states to 27787 states and 38306 transitions. [2021-11-02 21:32:37,305 INFO L78 Accepts]: Start accepts. Automaton has 27787 states and 38306 transitions. Word has length 117 [2021-11-02 21:32:37,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:32:37,305 INFO L470 AbstractCegarLoop]: Abstraction has 27787 states and 38306 transitions. [2021-11-02 21:32:37,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2021-11-02 21:32:37,305 INFO L276 IsEmpty]: Start isEmpty. Operand 27787 states and 38306 transitions. [2021-11-02 21:32:37,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-02 21:32:37,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:32:37,307 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] [2021-11-02 21:32:37,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 21:32:37,309 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr130ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:32:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:32:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash 37048080, now seen corresponding path program 1 times [2021-11-02 21:32:37,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:32:37,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397654621] [2021-11-02 21:32:37,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:32:37,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:32:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:32:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 21:32:37,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:32:37,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397654621] [2021-11-02 21:32:37,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397654621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:32:37,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:32:37,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 21:32:37,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517565006] [2021-11-02 21:32:37,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:32:37,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:32:37,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:32:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:37,422 INFO L87 Difference]: Start difference. First operand 27787 states and 38306 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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) [2021-11-02 21:32:43,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:32:43,697 INFO L93 Difference]: Finished difference Result 55235 states and 76633 transitions. [2021-11-02 21:32:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:32:43,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 118 [2021-11-02 21:32:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:32:43,734 INFO L225 Difference]: With dead ends: 55235 [2021-11-02 21:32:43,734 INFO L226 Difference]: Without dead ends: 27543 [2021-11-02 21:32:43,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:43,765 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4239 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 7131 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4689.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4239 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.22ms SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 7131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5663.31ms IncrementalHoareTripleChecker+Time [2021-11-02 21:32:43,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4239 Valid, 0 Invalid, 7256 Unknown, 0 Unchecked, 8.22ms Time], IncrementalHoareTripleChecker [125 Valid, 7131 Invalid, 0 Unknown, 0 Unchecked, 5663.31ms Time] [2021-11-02 21:32:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27543 states. [2021-11-02 21:32:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27543 to 25735. [2021-11-02 21:32:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25735 states, 25663 states have (on average 1.385145929938043) internal successors, (35547), 25734 states have internal predecessors, (35547), 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) [2021-11-02 21:32:44,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25735 states to 25735 states and 35547 transitions. [2021-11-02 21:32:44,176 INFO L78 Accepts]: Start accepts. Automaton has 25735 states and 35547 transitions. Word has length 118 [2021-11-02 21:32:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:32:44,176 INFO L470 AbstractCegarLoop]: Abstraction has 25735 states and 35547 transitions. [2021-11-02 21:32:44,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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) [2021-11-02 21:32:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 25735 states and 35547 transitions. [2021-11-02 21:32:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-02 21:32:44,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:32:44,180 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] [2021-11-02 21:32:44,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 21:32:44,180 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:32:44,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:32:44,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1097529987, now seen corresponding path program 1 times [2021-11-02 21:32:44,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:32:44,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550864722] [2021-11-02 21:32:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:32:44,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:32:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:32:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 21:32:44,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:32:44,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550864722] [2021-11-02 21:32:44,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550864722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:32:44,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:32:44,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:32:44,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287543807] [2021-11-02 21:32:44,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:32:44,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:32:44,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:32:44,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:44,264 INFO L87 Difference]: Start difference. First operand 25735 states and 35547 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-11-02 21:32:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:32:53,059 INFO L93 Difference]: Finished difference Result 66334 states and 91666 transitions. [2021-11-02 21:32:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:32:53,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 164 [2021-11-02 21:32:53,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:32:53,124 INFO L225 Difference]: With dead ends: 66334 [2021-11-02 21:32:53,124 INFO L226 Difference]: Without dead ends: 40698 [2021-11-02 21:32:53,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:53,160 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3265 mSDsluCounter, 5038 mSDsCounter, 0 mSdLazyCounter, 11296 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6620.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3265 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.27ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7975.80ms IncrementalHoareTripleChecker+Time [2021-11-02 21:32:53,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3265 Valid, 0 Invalid, 11298 Unknown, 0 Unchecked, 11.27ms Time], IncrementalHoareTripleChecker [2 Valid, 11296 Invalid, 0 Unknown, 0 Unchecked, 7975.80ms Time] [2021-11-02 21:32:53,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40698 states. [2021-11-02 21:32:53,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40698 to 39995. [2021-11-02 21:32:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39995 states, 39923 states have (on average 1.3868446760013025) internal successors, (55367), 39994 states have internal predecessors, (55367), 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) [2021-11-02 21:32:53,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39995 states to 39995 states and 55367 transitions. [2021-11-02 21:32:53,916 INFO L78 Accepts]: Start accepts. Automaton has 39995 states and 55367 transitions. Word has length 164 [2021-11-02 21:32:53,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:32:53,917 INFO L470 AbstractCegarLoop]: Abstraction has 39995 states and 55367 transitions. [2021-11-02 21:32:53,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-11-02 21:32:53,917 INFO L276 IsEmpty]: Start isEmpty. Operand 39995 states and 55367 transitions. [2021-11-02 21:32:53,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-02 21:32:53,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:32:53,920 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] [2021-11-02 21:32:53,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 21:32:53,920 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr105ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:32:53,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:32:53,921 INFO L85 PathProgramCache]: Analyzing trace with hash -554150780, now seen corresponding path program 1 times [2021-11-02 21:32:53,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:32:53,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002558115] [2021-11-02 21:32:53,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:32:53,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:32:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:32:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 21:32:54,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:32:54,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002558115] [2021-11-02 21:32:54,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002558115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:32:54,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:32:54,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:32:54,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341111545] [2021-11-02 21:32:54,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:32:54,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:32:54,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:32:54,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:32:54,128 INFO L87 Difference]: Start difference. First operand 39995 states and 55367 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-11-02 21:33:02,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:33:02,997 INFO L93 Difference]: Finished difference Result 98469 states and 136385 transitions. [2021-11-02 21:33:03,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:33:03,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 166 [2021-11-02 21:33:03,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:33:03,098 INFO L225 Difference]: With dead ends: 98469 [2021-11-02 21:33:03,098 INFO L226 Difference]: Without dead ends: 58573 [2021-11-02 21:33:03,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:33:03,139 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3226 mSDsluCounter, 5038 mSDsCounter, 0 mSdLazyCounter, 13167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6563.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.42ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7726.76ms IncrementalHoareTripleChecker+Time [2021-11-02 21:33:03,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3226 Valid, 0 Invalid, 13169 Unknown, 0 Unchecked, 11.42ms Time], IncrementalHoareTripleChecker [2 Valid, 13167 Invalid, 0 Unknown, 0 Unchecked, 7726.76ms Time] [2021-11-02 21:33:03,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58573 states. [2021-11-02 21:33:04,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58573 to 57907. [2021-11-02 21:33:04,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57907 states, 57835 states have (on average 1.388346157171263) internal successors, (80295), 57906 states have internal predecessors, (80295), 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) [2021-11-02 21:33:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57907 states to 57907 states and 80295 transitions. [2021-11-02 21:33:04,330 INFO L78 Accepts]: Start accepts. Automaton has 57907 states and 80295 transitions. Word has length 166 [2021-11-02 21:33:04,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:33:04,331 INFO L470 AbstractCegarLoop]: Abstraction has 57907 states and 80295 transitions. [2021-11-02 21:33:04,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-11-02 21:33:04,331 INFO L276 IsEmpty]: Start isEmpty. Operand 57907 states and 80295 transitions. [2021-11-02 21:33:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-02 21:33:04,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:33:04,333 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 21:33:04,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-02 21:33:04,333 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:33:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:33:04,333 INFO L85 PathProgramCache]: Analyzing trace with hash 929460839, now seen corresponding path program 1 times [2021-11-02 21:33:04,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:33:04,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328305011] [2021-11-02 21:33:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:33:04,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:33:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:33:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-02 21:33:04,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:33:04,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328305011] [2021-11-02 21:33:04,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328305011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:33:04,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:33:04,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:33:04,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907180163] [2021-11-02 21:33:04,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:33:04,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:33:04,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:33:04,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:33:04,427 INFO L87 Difference]: Start difference. First operand 57907 states and 80295 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-11-02 21:33:11,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:33:11,001 INFO L93 Difference]: Finished difference Result 57907 states and 80295 transitions. [2021-11-02 21:33:11,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:33:11,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 176 [2021-11-02 21:33:11,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:33:11,100 INFO L225 Difference]: With dead ends: 57907 [2021-11-02 21:33:11,100 INFO L226 Difference]: Without dead ends: 57265 [2021-11-02 21:33:11,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:33:11,118 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1125 mSDsluCounter, 3662 mSDsCounter, 0 mSdLazyCounter, 8686 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4947.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.54ms SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 8686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5819.73ms IncrementalHoareTripleChecker+Time [2021-11-02 21:33:11,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 0 Invalid, 8772 Unknown, 0 Unchecked, 7.54ms Time], IncrementalHoareTripleChecker [86 Valid, 8686 Invalid, 0 Unknown, 0 Unchecked, 5819.73ms Time] [2021-11-02 21:33:11,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57265 states. [2021-11-02 21:33:12,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57265 to 57265. [2021-11-02 21:33:12,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57265 states, 57241 states have (on average 1.377631418039517) internal successors, (78857), 57264 states have internal predecessors, (78857), 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) [2021-11-02 21:33:12,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57265 states to 57265 states and 78857 transitions. [2021-11-02 21:33:12,225 INFO L78 Accepts]: Start accepts. Automaton has 57265 states and 78857 transitions. Word has length 176 [2021-11-02 21:33:12,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:33:12,225 INFO L470 AbstractCegarLoop]: Abstraction has 57265 states and 78857 transitions. [2021-11-02 21:33:12,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-11-02 21:33:12,226 INFO L276 IsEmpty]: Start isEmpty. Operand 57265 states and 78857 transitions. [2021-11-02 21:33:12,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-02 21:33:12,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:33:12,267 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-02 21:33:12,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-02 21:33:12,267 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:33:12,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:33:12,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1183845773, now seen corresponding path program 1 times [2021-11-02 21:33:12,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:33:12,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451481927] [2021-11-02 21:33:12,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:33:12,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:33:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:33:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-02 21:33:12,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:33:12,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451481927] [2021-11-02 21:33:12,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451481927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:33:12,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:33:12,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:33:12,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949449369] [2021-11-02 21:33:12,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:33:12,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:33:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:33:12,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:33:12,384 INFO L87 Difference]: Start difference. First operand 57265 states and 78857 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2021-11-02 21:33:19,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:33:19,278 INFO L93 Difference]: Finished difference Result 114463 states and 157663 transitions. [2021-11-02 21:33:19,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:33:19,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 227 [2021-11-02 21:33:19,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:33:19,382 INFO L225 Difference]: With dead ends: 114463 [2021-11-02 21:33:19,383 INFO L226 Difference]: Without dead ends: 57297 [2021-11-02 21:33:19,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:33:19,451 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 4917 mSDsCounter, 0 mSdLazyCounter, 9854 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4821.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.89ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5742.86ms IncrementalHoareTripleChecker+Time [2021-11-02 21:33:19,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 9856 Unknown, 0 Unchecked, 10.89ms Time], IncrementalHoareTripleChecker [2 Valid, 9854 Invalid, 0 Unknown, 0 Unchecked, 5742.86ms Time] [2021-11-02 21:33:19,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57297 states. [2021-11-02 21:33:20,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57297 to 57297. [2021-11-02 21:33:20,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57297 states, 57273 states have (on average 1.3774204249821032) internal successors, (78889), 57296 states have internal predecessors, (78889), 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) [2021-11-02 21:33:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57297 states to 57297 states and 78889 transitions. [2021-11-02 21:33:20,740 INFO L78 Accepts]: Start accepts. Automaton has 57297 states and 78889 transitions. Word has length 227 [2021-11-02 21:33:20,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:33:20,741 INFO L470 AbstractCegarLoop]: Abstraction has 57297 states and 78889 transitions. [2021-11-02 21:33:20,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2021-11-02 21:33:20,741 INFO L276 IsEmpty]: Start isEmpty. Operand 57297 states and 78889 transitions. [2021-11-02 21:33:20,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-02 21:33:20,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:33:20,770 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-02 21:33:20,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-02 21:33:20,771 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:33:20,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:33:20,771 INFO L85 PathProgramCache]: Analyzing trace with hash 202939637, now seen corresponding path program 1 times [2021-11-02 21:33:20,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:33:20,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374773266] [2021-11-02 21:33:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:33:20,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:33:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:33:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-02 21:33:21,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:33:21,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374773266] [2021-11-02 21:33:21,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374773266] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 21:33:21,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427912940] [2021-11-02 21:33:21,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:33:21,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 21:33:21,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 21:33:21,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 21:33:21,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 21:33:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:33:21,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 3031 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 21:33:21,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 21:33:22,350 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-02 21:33:22,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 21:33:22,673 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-02 21:33:22,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427912940] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-02 21:33:22,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-02 21:33:22,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-02 21:33:22,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561841975] [2021-11-02 21:33:22,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 21:33:22,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:33:22,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 21:33:22,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-02 21:33:22,676 INFO L87 Difference]: Start difference. First operand 57297 states and 78889 transitions. Second operand has 8 states, 8 states have (on average 28.375) internal successors, (227), 8 states have internal predecessors, (227), 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) [2021-11-02 21:33:32,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:33:32,793 INFO L93 Difference]: Finished difference Result 114781 states and 158188 transitions. [2021-11-02 21:33:32,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 21:33:32,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 28.375) internal successors, (227), 8 states have internal predecessors, (227), 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 227 [2021-11-02 21:33:32,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:33:32,889 INFO L225 Difference]: With dead ends: 114781 [2021-11-02 21:33:32,890 INFO L226 Difference]: Without dead ends: 57521 [2021-11-02 21:33:32,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.04ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-02 21:33:32,937 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 9722 mSDsCounter, 0 mSdLazyCounter, 14811 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7407.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.93ms SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 14811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8806.03ms IncrementalHoareTripleChecker+Time [2021-11-02 21:33:32,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 14919 Unknown, 0 Unchecked, 14.93ms Time], IncrementalHoareTripleChecker [108 Valid, 14811 Invalid, 0 Unknown, 0 Unchecked, 8806.03ms Time] [2021-11-02 21:33:32,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57521 states. [2021-11-02 21:33:34,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57521 to 57521. [2021-11-02 21:33:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57521 states, 57497 states have (on average 1.3759500495678036) internal successors, (79113), 57520 states have internal predecessors, (79113), 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) [2021-11-02 21:33:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57521 states to 57521 states and 79113 transitions. [2021-11-02 21:33:34,245 INFO L78 Accepts]: Start accepts. Automaton has 57521 states and 79113 transitions. Word has length 227 [2021-11-02 21:33:34,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:33:34,245 INFO L470 AbstractCegarLoop]: Abstraction has 57521 states and 79113 transitions. [2021-11-02 21:33:34,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.375) internal successors, (227), 8 states have internal predecessors, (227), 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) [2021-11-02 21:33:34,246 INFO L276 IsEmpty]: Start isEmpty. Operand 57521 states and 79113 transitions. [2021-11-02 21:33:34,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-02 21:33:34,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:33:34,274 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-02 21:33:34,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 21:33:34,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-02 21:33:34,488 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-02 21:33:34,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:33:34,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1625283515, now seen corresponding path program 2 times [2021-11-02 21:33:34,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:33:34,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714125769] [2021-11-02 21:33:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:33:34,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:33:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:33:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-11-02 21:33:34,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:33:34,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714125769] [2021-11-02 21:33:34,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714125769] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 21:33:34,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547148536] [2021-11-02 21:33:34,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 21:33:34,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 21:33:34,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 21:33:34,712 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 21:33:34,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 21:33:35,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-02 21:33:35,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 21:33:35,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 2386 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-02 21:33:35,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 21:33:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-02 21:33:35,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-02 21:33:35,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547148536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:33:35,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 21:33:35,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2021-11-02 21:33:35,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448727994] [2021-11-02 21:33:35,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 21:33:35,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:33:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 21:33:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-11-02 21:33:35,872 INFO L87 Difference]: Start difference. First operand 57521 states and 79113 transitions. Second operand has 12 states, 12 states have (on average 18.416666666666668) internal successors, (221), 12 states have internal predecessors, (221), 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)