./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/weaver/chl-simpl-str-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 0b48bde914fb7ebeda4cbd6fd329f7fd1281e3c3e233b6f5149c7b66a2f709ab --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:59:58,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:59:58,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:59:58,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:59:58,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:59:58,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:59:58,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:59:58,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:59:58,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:59:58,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:59:58,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:59:58,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:59:58,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:59:58,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:59:58,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:59:58,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:59:58,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:59:58,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:59:58,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:59:58,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:59:58,853 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:59:58,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:59:58,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:59:58,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:59:58,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:59:58,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:59:58,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:59:58,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:59:58,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:59:58,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:59:58,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:59:58,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:59:58,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:59:58,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:59:58,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:59:58,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:59:58,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:59:58,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:59:58,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:59:58,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:59:58,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:59:58,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:59:58,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:59:58,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:59:58,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:59:58,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:59:58,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:59:58,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:59:58,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:59:58,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:59:58,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:59:58,909 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:59:58,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:59:58,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:59:58,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:59:58,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:59:58,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:59:58,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:59:58,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:59:58,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:59:58,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:59:58,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:59:58,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:59:58,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:59:58,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:59:58,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:59:58,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:59:58,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:59:58,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:59:58,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:59:58,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:59:58,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:59:58,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:59:58,913 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:59:58,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:59:58,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:59:58,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b48bde914fb7ebeda4cbd6fd329f7fd1281e3c3e233b6f5149c7b66a2f709ab [2022-07-21 08:59:59,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:59:59,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:59:59,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:59:59,195 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:59:59,196 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:59:59,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2022-07-21 08:59:59,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d6974e57/0b8d0025d535496aba74fe7707efcd55/FLAG8213222c2 [2022-07-21 08:59:59,584 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:59:59,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2022-07-21 08:59:59,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d6974e57/0b8d0025d535496aba74fe7707efcd55/FLAG8213222c2 [2022-07-21 08:59:59,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d6974e57/0b8d0025d535496aba74fe7707efcd55 [2022-07-21 08:59:59,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:59:59,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:59:59,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:59:59,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:59:59,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:59:59,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19df06fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59, skipping insertion in model container [2022-07-21 08:59:59,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:59:59,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:59:59,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c[2514,2527] [2022-07-21 08:59:59,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:59:59,826 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:59:59,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c[2514,2527] [2022-07-21 08:59:59,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:59:59,873 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:59:59,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59 WrapperNode [2022-07-21 08:59:59,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:59:59,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:59:59,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:59:59,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:59:59,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,922 INFO L137 Inliner]: procedures = 23, calls = 30, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 175 [2022-07-21 08:59:59,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:59:59,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:59:59,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:59:59,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:59:59,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:59:59,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:59:59,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:59:59,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:59:59,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (1/1) ... [2022-07-21 08:59:59,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:59:59,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:59:59,980 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) [2022-07-21 08:59:59,987 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 [2022-07-21 09:00:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:00:00,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-21 09:00:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-21 09:00:00,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-21 09:00:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-21 09:00:00,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-21 09:00:00,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-21 09:00:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:00:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:00:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:00:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:00:00,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:00:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:00:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:00:00,012 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 09:00:00,103 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:00:00,104 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:00:00,339 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:00:00,347 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:00:00,347 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 09:00:00,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:00:00 BoogieIcfgContainer [2022-07-21 09:00:00,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:00:00,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:00:00,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:00:00,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:00:00,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:59:59" (1/3) ... [2022-07-21 09:00:00,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f472562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:00:00, skipping insertion in model container [2022-07-21 09:00:00,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:59:59" (2/3) ... [2022-07-21 09:00:00,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f472562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:00:00, skipping insertion in model container [2022-07-21 09:00:00,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:00:00" (3/3) ... [2022-07-21 09:00:00,355 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2022-07-21 09:00:00,358 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 09:00:00,364 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:00:00,365 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:00:00,365 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 09:00:00,460 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-21 09:00:00,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 227 transitions, 478 flow [2022-07-21 09:00:00,558 INFO L129 PetriNetUnfolder]: 16/224 cut-off events. [2022-07-21 09:00:00,558 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:00:00,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 224 events. 16/224 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 503 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 154. Up to 2 conditions per place. [2022-07-21 09:00:00,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 227 transitions, 478 flow [2022-07-21 09:00:00,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 213 transitions, 444 flow [2022-07-21 09:00:00,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:00:00,583 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@709d6b20, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@51c165b0 [2022-07-21 09:00:00,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 09:00:00,651 INFO L129 PetriNetUnfolder]: 16/212 cut-off events. [2022-07-21 09:00:00,652 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:00:00,652 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:00,653 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:00,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:00,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:00,658 INFO L85 PathProgramCache]: Analyzing trace with hash -483569212, now seen corresponding path program 1 times [2022-07-21 09:00:00,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:00,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331336937] [2022-07-21 09:00:00,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:00,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:01,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:01,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:01,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331336937] [2022-07-21 09:00:01,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331336937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:01,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:01,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:00:01,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032935514] [2022-07-21 09:00:01,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:01,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:00:01,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:01,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:00:01,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:00:01,060 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 227 [2022-07-21 09:00:01,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 213 transitions, 444 flow. Second operand has 7 states, 7 states have (on average 202.28571428571428) internal successors, (1416), 7 states have internal predecessors, (1416), 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) [2022-07-21 09:00:01,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:01,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 227 [2022-07-21 09:00:01,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:01,258 INFO L129 PetriNetUnfolder]: 30/279 cut-off events. [2022-07-21 09:00:01,259 INFO L130 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2022-07-21 09:00:01,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 279 events. 30/279 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1076 event pairs, 10 based on Foata normal form. 60/323 useless extension candidates. Maximal degree in co-relation 281. Up to 40 conditions per place. [2022-07-21 09:00:01,263 INFO L132 encePairwiseOnDemand]: 211/227 looper letters, 22 selfloop transitions, 5 changer transitions 11/225 dead transitions. [2022-07-21 09:00:01,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 225 transitions, 577 flow [2022-07-21 09:00:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:00:01,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-21 09:00:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2067 transitions. [2022-07-21 09:00:01,277 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9105726872246696 [2022-07-21 09:00:01,278 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2067 transitions. [2022-07-21 09:00:01,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2067 transitions. [2022-07-21 09:00:01,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:01,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2067 transitions. [2022-07-21 09:00:01,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 206.7) internal successors, (2067), 10 states have internal predecessors, (2067), 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) [2022-07-21 09:00:01,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 227.0) internal successors, (2497), 11 states have internal predecessors, (2497), 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) [2022-07-21 09:00:01,304 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 227.0) internal successors, (2497), 11 states have internal predecessors, (2497), 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) [2022-07-21 09:00:01,305 INFO L186 Difference]: Start difference. First operand has 207 places, 213 transitions, 444 flow. Second operand 10 states and 2067 transitions. [2022-07-21 09:00:01,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 225 transitions, 577 flow [2022-07-21 09:00:01,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 225 transitions, 543 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-21 09:00:01,312 INFO L242 Difference]: Finished difference. Result has 217 places, 209 transitions, 457 flow [2022-07-21 09:00:01,313 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=457, PETRI_PLACES=217, PETRI_TRANSITIONS=209} [2022-07-21 09:00:01,315 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 10 predicate places. [2022-07-21 09:00:01,316 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 209 transitions, 457 flow [2022-07-21 09:00:01,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 202.28571428571428) internal successors, (1416), 7 states have internal predecessors, (1416), 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) [2022-07-21 09:00:01,317 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:01,317 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:01,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:00:01,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:01,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:01,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1802203198, now seen corresponding path program 1 times [2022-07-21 09:00:01,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:01,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098880908] [2022-07-21 09:00:01,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:01,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:01,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:01,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098880908] [2022-07-21 09:00:01,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098880908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:01,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:01,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:00:01,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920614833] [2022-07-21 09:00:01,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:01,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:00:01,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:01,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:00:01,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:00:01,395 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 227 [2022-07-21 09:00:01,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 209 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2022-07-21 09:00:01,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:01,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 227 [2022-07-21 09:00:01,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:01,530 INFO L129 PetriNetUnfolder]: 71/789 cut-off events. [2022-07-21 09:00:01,531 INFO L130 PetriNetUnfolder]: For 45/52 co-relation queries the response was YES. [2022-07-21 09:00:01,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 789 events. 71/789 cut-off events. For 45/52 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4972 event pairs, 24 based on Foata normal form. 1/717 useless extension candidates. Maximal degree in co-relation 1005. Up to 75 conditions per place. [2022-07-21 09:00:01,538 INFO L132 encePairwiseOnDemand]: 217/227 looper letters, 18 selfloop transitions, 6 changer transitions 0/217 dead transitions. [2022-07-21 09:00:01,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 217 transitions, 525 flow [2022-07-21 09:00:01,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:00:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:00:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 637 transitions. [2022-07-21 09:00:01,540 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9353891336270191 [2022-07-21 09:00:01,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 637 transitions. [2022-07-21 09:00:01,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 637 transitions. [2022-07-21 09:00:01,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:01,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 637 transitions. [2022-07-21 09:00:01,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 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) [2022-07-21 09:00:01,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:01,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:01,544 INFO L186 Difference]: Start difference. First operand has 217 places, 209 transitions, 457 flow. Second operand 3 states and 637 transitions. [2022-07-21 09:00:01,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 217 transitions, 525 flow [2022-07-21 09:00:01,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 217 transitions, 520 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-07-21 09:00:01,554 INFO L242 Difference]: Finished difference. Result has 214 places, 213 transitions, 500 flow [2022-07-21 09:00:01,555 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=214, PETRI_TRANSITIONS=213} [2022-07-21 09:00:01,555 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 7 predicate places. [2022-07-21 09:00:01,556 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 213 transitions, 500 flow [2022-07-21 09:00:01,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2022-07-21 09:00:01,556 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:01,557 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:01,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 09:00:01,557 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:01,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:01,558 INFO L85 PathProgramCache]: Analyzing trace with hash 623842676, now seen corresponding path program 2 times [2022-07-21 09:00:01,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:01,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294653200] [2022-07-21 09:00:01,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:01,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:01,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:01,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:01,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294653200] [2022-07-21 09:00:01,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294653200] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:01,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:01,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:00:01,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945570558] [2022-07-21 09:00:01,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:01,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:00:01,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:01,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:00:01,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:00:01,639 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 227 [2022-07-21 09:00:01,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 213 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2022-07-21 09:00:01,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:01,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 227 [2022-07-21 09:00:01,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:01,747 INFO L129 PetriNetUnfolder]: 54/633 cut-off events. [2022-07-21 09:00:01,747 INFO L130 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2022-07-21 09:00:01,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 633 events. 54/633 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3376 event pairs, 18 based on Foata normal form. 18/612 useless extension candidates. Maximal degree in co-relation 843. Up to 49 conditions per place. [2022-07-21 09:00:01,754 INFO L132 encePairwiseOnDemand]: 219/227 looper letters, 24 selfloop transitions, 4 changer transitions 0/221 dead transitions. [2022-07-21 09:00:01,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 221 transitions, 584 flow [2022-07-21 09:00:01,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:00:01,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:00:01,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 637 transitions. [2022-07-21 09:00:01,756 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9353891336270191 [2022-07-21 09:00:01,756 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 637 transitions. [2022-07-21 09:00:01,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 637 transitions. [2022-07-21 09:00:01,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:01,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 637 transitions. [2022-07-21 09:00:01,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 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) [2022-07-21 09:00:01,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:01,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:01,761 INFO L186 Difference]: Start difference. First operand has 214 places, 213 transitions, 500 flow. Second operand 3 states and 637 transitions. [2022-07-21 09:00:01,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 221 transitions, 584 flow [2022-07-21 09:00:01,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 221 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-21 09:00:01,767 INFO L242 Difference]: Finished difference. Result has 216 places, 217 transitions, 536 flow [2022-07-21 09:00:01,767 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=216, PETRI_TRANSITIONS=217} [2022-07-21 09:00:01,769 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 9 predicate places. [2022-07-21 09:00:01,769 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 217 transitions, 536 flow [2022-07-21 09:00:01,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2022-07-21 09:00:01,769 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:01,770 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:01,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 09:00:01,770 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:01,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1893473444, now seen corresponding path program 1 times [2022-07-21 09:00:01,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:01,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094860610] [2022-07-21 09:00:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:01,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:01,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:01,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:01,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094860610] [2022-07-21 09:00:01,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094860610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:01,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:01,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:00:01,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917867449] [2022-07-21 09:00:01,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:01,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:00:01,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:01,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:00:01,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:00:01,843 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 227 [2022-07-21 09:00:01,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 217 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-07-21 09:00:01,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:01,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 227 [2022-07-21 09:00:01,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:02,060 INFO L129 PetriNetUnfolder]: 105/2022 cut-off events. [2022-07-21 09:00:02,061 INFO L130 PetriNetUnfolder]: For 196/349 co-relation queries the response was YES. [2022-07-21 09:00:02,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2762 conditions, 2022 events. 105/2022 cut-off events. For 196/349 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 19108 event pairs, 15 based on Foata normal form. 0/1911 useless extension candidates. Maximal degree in co-relation 2576. Up to 81 conditions per place. [2022-07-21 09:00:02,076 INFO L132 encePairwiseOnDemand]: 221/227 looper letters, 19 selfloop transitions, 3 changer transitions 0/225 dead transitions. [2022-07-21 09:00:02,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 225 transitions, 601 flow [2022-07-21 09:00:02,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:00:02,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:00:02,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2022-07-21 09:00:02,078 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9397944199706314 [2022-07-21 09:00:02,078 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2022-07-21 09:00:02,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2022-07-21 09:00:02,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:02,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2022-07-21 09:00:02,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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) [2022-07-21 09:00:02,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:02,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:02,084 INFO L186 Difference]: Start difference. First operand has 216 places, 217 transitions, 536 flow. Second operand 3 states and 640 transitions. [2022-07-21 09:00:02,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 225 transitions, 601 flow [2022-07-21 09:00:02,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 225 transitions, 589 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-07-21 09:00:02,094 INFO L242 Difference]: Finished difference. Result has 219 places, 220 transitions, 554 flow [2022-07-21 09:00:02,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=219, PETRI_TRANSITIONS=220} [2022-07-21 09:00:02,096 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 12 predicate places. [2022-07-21 09:00:02,096 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 220 transitions, 554 flow [2022-07-21 09:00:02,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-07-21 09:00:02,100 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:02,100 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:02,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 09:00:02,100 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:02,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:02,101 INFO L85 PathProgramCache]: Analyzing trace with hash -574075276, now seen corresponding path program 1 times [2022-07-21 09:00:02,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:02,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168590662] [2022-07-21 09:00:02,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:02,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:02,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:02,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:02,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168590662] [2022-07-21 09:00:02,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168590662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:02,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:02,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:00:02,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934248960] [2022-07-21 09:00:02,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:02,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:00:02,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:02,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:00:02,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:00:02,167 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 227 [2022-07-21 09:00:02,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 220 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 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) [2022-07-21 09:00:02,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:02,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 227 [2022-07-21 09:00:02,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:02,428 INFO L129 PetriNetUnfolder]: 124/2513 cut-off events. [2022-07-21 09:00:02,428 INFO L130 PetriNetUnfolder]: For 113/222 co-relation queries the response was YES. [2022-07-21 09:00:02,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3382 conditions, 2513 events. 124/2513 cut-off events. For 113/222 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 24116 event pairs, 22 based on Foata normal form. 2/2332 useless extension candidates. Maximal degree in co-relation 3146. Up to 90 conditions per place. [2022-07-21 09:00:02,448 INFO L132 encePairwiseOnDemand]: 221/227 looper letters, 15 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2022-07-21 09:00:02,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 227 transitions, 611 flow [2022-07-21 09:00:02,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:00:02,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:00:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2022-07-21 09:00:02,450 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9427312775330396 [2022-07-21 09:00:02,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 642 transitions. [2022-07-21 09:00:02,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 642 transitions. [2022-07-21 09:00:02,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:02,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 642 transitions. [2022-07-21 09:00:02,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 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) [2022-07-21 09:00:02,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:02,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:02,454 INFO L186 Difference]: Start difference. First operand has 219 places, 220 transitions, 554 flow. Second operand 3 states and 642 transitions. [2022-07-21 09:00:02,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 227 transitions, 611 flow [2022-07-21 09:00:02,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 227 transitions, 608 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 09:00:02,464 INFO L242 Difference]: Finished difference. Result has 222 places, 222 transitions, 579 flow [2022-07-21 09:00:02,464 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=579, PETRI_PLACES=222, PETRI_TRANSITIONS=222} [2022-07-21 09:00:02,466 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 15 predicate places. [2022-07-21 09:00:02,467 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 222 transitions, 579 flow [2022-07-21 09:00:02,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 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) [2022-07-21 09:00:02,467 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:02,467 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:02,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 09:00:02,468 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:02,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:02,469 INFO L85 PathProgramCache]: Analyzing trace with hash -720449500, now seen corresponding path program 1 times [2022-07-21 09:00:02,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:02,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029699474] [2022-07-21 09:00:02,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:02,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:02,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:02,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:02,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029699474] [2022-07-21 09:00:02,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029699474] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:02,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:02,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:00:02,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684234155] [2022-07-21 09:00:02,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:02,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:00:02,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:02,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:00:02,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:00:02,602 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 227 [2022-07-21 09:00:02,603 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 222 transitions, 579 flow. Second operand has 8 states, 8 states have (on average 198.5) internal successors, (1588), 8 states have internal predecessors, (1588), 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) [2022-07-21 09:00:02,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:02,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 227 [2022-07-21 09:00:02,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:02,812 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 252#true, Black: 260#(not (= ~length_4~0 0)), 276#true, 56#L74-4true, 117#L43-18true, 266#(not (= ~length_2~0 0)), Black: 264#true, 177#L49-20true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), Black: 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,812 INFO L384 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-07-21 09:00:02,812 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-07-21 09:00:02,813 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-07-21 09:00:02,813 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-07-21 09:00:02,813 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 252#true, Black: 260#(not (= ~length_4~0 0)), 276#true, 56#L74-4true, 117#L43-18true, 266#(not (= ~length_2~0 0)), Black: 264#true, 95#L49-18true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), Black: 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,813 INFO L384 tUnfolder$Statistics]: this new event has 95 ancestors and is cut-off event [2022-07-21 09:00:02,813 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-07-21 09:00:02,813 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-07-21 09:00:02,813 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-07-21 09:00:02,814 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 252#true, Black: 260#(not (= ~length_4~0 0)), 276#true, 56#L74-4true, 117#L43-18true, 266#(not (= ~length_2~0 0)), 118#L49-19true, Black: 264#true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), Black: 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,814 INFO L384 tUnfolder$Statistics]: this new event has 96 ancestors and is cut-off event [2022-07-21 09:00:02,814 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-07-21 09:00:02,814 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-07-21 09:00:02,814 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-07-21 09:00:02,814 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][63], [Black: 254#(= ~length_4~0 0), Black: 258#true, 56#L74-4true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 117#L43-18true, 266#(not (= ~length_2~0 0)), Black: 264#true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 176#L49-9true, 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,814 INFO L384 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2022-07-21 09:00:02,815 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,815 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,815 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,815 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][63], [Black: 252#true, Black: 260#(not (= ~length_4~0 0)), 56#L74-4true, 266#(not (= ~length_2~0 0)), 117#L43-18true, Black: 264#true, 150#L49-17true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), Black: 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,815 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,815 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-21 09:00:02,815 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-21 09:00:02,815 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-21 09:00:02,816 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][63], [Black: 252#true, Black: 260#(not (= ~length_4~0 0)), 56#L74-4true, 266#(not (= ~length_2~0 0)), 117#L43-18true, Black: 264#true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), Black: 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, 76#L49-7true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,816 INFO L384 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2022-07-21 09:00:02,816 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,816 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,816 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,983 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][63], [Black: 254#(= ~length_4~0 0), Black: 258#true, 56#L74-4true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 117#L43-18true, 266#(not (= ~length_2~0 0)), Black: 264#true, 150#L49-17true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,984 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,984 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-21 09:00:02,984 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,984 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,986 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L55-17-->L55-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork0_#t~ite12#1_5|) InVars {thread3Thread1of1ForFork0_#t~ite12#1=|v_thread3Thread1of1ForFork0_#t~ite12#1_5|} OutVars{~result_8~0=v_~result_8~0_1, thread3Thread1of1ForFork0_#t~ite12#1=|v_thread3Thread1of1ForFork0_#t~ite12#1_5|} AuxVars[] AssignedVars[~result_8~0][157], [Black: 254#(= ~length_4~0 0), Black: 258#true, 56#L74-4true, 117#L43-18true, 266#(not (= ~length_2~0 0)), 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), Black: 264#true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 176#L49-9true, 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,986 INFO L384 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2022-07-21 09:00:02,986 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,986 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,986 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,987 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L55-17-->L55-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork0_#t~ite12#1_5|) InVars {thread3Thread1of1ForFork0_#t~ite12#1=|v_thread3Thread1of1ForFork0_#t~ite12#1_5|} OutVars{~result_8~0=v_~result_8~0_1, thread3Thread1of1ForFork0_#t~ite12#1=|v_thread3Thread1of1ForFork0_#t~ite12#1_5|} AuxVars[] AssignedVars[~result_8~0][156], [Black: 252#true, Black: 260#(not (= ~length_4~0 0)), 56#L74-4true, 117#L43-18true, 266#(not (= ~length_2~0 0)), Black: 264#true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), Black: 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, 76#L49-7true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,987 INFO L384 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2022-07-21 09:00:02,987 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,987 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,987 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-07-21 09:00:02,990 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][63], [Black: 254#(= ~length_4~0 0), Black: 258#true, 56#L74-4true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 266#(not (= ~length_2~0 0)), 117#L43-18true, Black: 264#true, 150#L49-17true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,990 INFO L384 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-07-21 09:00:02,990 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-21 09:00:02,990 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,990 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,990 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,991 INFO L382 tUnfolder$Statistics]: inserting event number 6 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][63], [Black: 254#(= ~length_4~0 0), Black: 258#true, 56#L74-4true, 266#(not (= ~length_2~0 0)), 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 117#L43-18true, Black: 264#true, 150#L49-17true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:02,991 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,991 INFO L387 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-07-21 09:00:02,992 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-07-21 09:00:02,992 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,992 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-07-21 09:00:02,992 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-07-21 09:00:03,025 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 254#(= ~length_4~0 0), Black: 258#true, 276#true, 56#L74-4true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 266#(not (= ~length_2~0 0)), 117#L43-18true, 95#L49-18true, Black: 264#true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,026 INFO L384 tUnfolder$Statistics]: this new event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,026 INFO L387 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,026 INFO L387 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,026 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-07-21 09:00:03,029 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 254#(= ~length_4~0 0), Black: 258#true, 276#true, 56#L74-4true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 266#(not (= ~length_2~0 0)), 117#L43-18true, Black: 264#true, 95#L49-18true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,030 INFO L384 tUnfolder$Statistics]: this new event has 117 ancestors and is cut-off event [2022-07-21 09:00:03,030 INFO L387 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,030 INFO L387 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,030 INFO L387 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,030 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-07-21 09:00:03,032 INFO L382 tUnfolder$Statistics]: inserting event number 6 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 254#(= ~length_4~0 0), Black: 258#true, 276#true, 56#L74-4true, 117#L43-18true, 266#(not (= ~length_2~0 0)), 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 95#L49-18true, Black: 264#true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,032 INFO L384 tUnfolder$Statistics]: this new event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,032 INFO L387 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,032 INFO L387 tUnfolder$Statistics]: existing Event has 117 ancestors and is cut-off event [2022-07-21 09:00:03,032 INFO L387 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,033 INFO L387 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-07-21 09:00:03,033 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-07-21 09:00:03,036 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 254#(= ~length_4~0 0), Black: 258#true, 276#true, 56#L74-4true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 266#(not (= ~length_2~0 0)), 117#L43-18true, 118#L49-19true, Black: 264#true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,037 INFO L384 tUnfolder$Statistics]: this new event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,037 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-07-21 09:00:03,037 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,037 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,041 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 254#(= ~length_4~0 0), Black: 258#true, 276#true, 56#L74-4true, 117#L43-18true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 266#(not (= ~length_2~0 0)), 118#L49-19true, Black: 264#true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,041 INFO L384 tUnfolder$Statistics]: this new event has 118 ancestors and is cut-off event [2022-07-21 09:00:03,041 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,041 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-07-21 09:00:03,042 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,042 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,043 INFO L382 tUnfolder$Statistics]: inserting event number 6 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 254#(= ~length_4~0 0), Black: 258#true, 276#true, 56#L74-4true, 117#L43-18true, 266#(not (= ~length_2~0 0)), 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 118#L49-19true, Black: 264#true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,043 INFO L384 tUnfolder$Statistics]: this new event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,043 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,044 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-07-21 09:00:03,044 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,044 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-07-21 09:00:03,044 INFO L387 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-07-21 09:00:03,053 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 254#(= ~length_4~0 0), Black: 258#true, 276#true, 56#L74-4true, 117#L43-18true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 266#(not (= ~length_2~0 0)), Black: 264#true, 260#(not (= ~length_4~0 0)), 177#L49-20true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,053 INFO L384 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,053 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,053 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-07-21 09:00:03,054 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,056 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 254#(= ~length_4~0 0), Black: 258#true, 276#true, 56#L74-4true, 117#L43-18true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 266#(not (= ~length_2~0 0)), Black: 264#true, 260#(not (= ~length_4~0 0)), 177#L49-20true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,056 INFO L384 tUnfolder$Statistics]: this new event has 119 ancestors and is cut-off event [2022-07-21 09:00:03,056 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,056 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,056 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-07-21 09:00:03,056 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,058 INFO L382 tUnfolder$Statistics]: inserting event number 6 for the transition-marking pair ([530] L43-17-->L43-18: Formula: (= v_~result_6~0_1 |v_thread1Thread1of1ForFork1_#t~ite4#1_5|) InVars {thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} OutVars{~result_6~0=v_~result_6~0_1, thread1Thread1of1ForFork1_#t~ite4#1=|v_thread1Thread1of1ForFork1_#t~ite4#1_5|} AuxVars[] AssignedVars[~result_6~0][112], [Black: 254#(= ~length_4~0 0), Black: 258#true, 276#true, 56#L74-4true, 266#(not (= ~length_2~0 0)), 117#L43-18true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), Black: 264#true, 260#(not (= ~length_4~0 0)), 177#L49-20true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,058 INFO L384 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,058 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,058 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,058 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-07-21 09:00:03,058 INFO L387 tUnfolder$Statistics]: existing Event has 119 ancestors and is cut-off event [2022-07-21 09:00:03,058 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-07-21 09:00:03,062 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L55-17-->L55-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork0_#t~ite12#1_5|) InVars {thread3Thread1of1ForFork0_#t~ite12#1=|v_thread3Thread1of1ForFork0_#t~ite12#1_5|} OutVars{~result_8~0=v_~result_8~0_1, thread3Thread1of1ForFork0_#t~ite12#1=|v_thread3Thread1of1ForFork0_#t~ite12#1_5|} AuxVars[] AssignedVars[~result_8~0][157], [Black: 254#(= ~length_4~0 0), Black: 258#true, 88#L75-2true, 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 266#(not (= ~length_2~0 0)), Black: 264#true, 260#(not (= ~length_4~0 0)), Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 176#L49-9true, 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,062 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-07-21 09:00:03,062 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-21 09:00:03,062 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-21 09:00:03,063 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-21 09:00:03,063 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L55-17-->L55-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork0_#t~ite12#1_5|) InVars {thread3Thread1of1ForFork0_#t~ite12#1=|v_thread3Thread1of1ForFork0_#t~ite12#1_5|} OutVars{~result_8~0=v_~result_8~0_1, thread3Thread1of1ForFork0_#t~ite12#1=|v_thread3Thread1of1ForFork0_#t~ite12#1_5|} AuxVars[] AssignedVars[~result_8~0][156], [Black: 252#true, Black: 260#(not (= ~length_4~0 0)), 88#L75-2true, 266#(not (= ~length_2~0 0)), Black: 264#true, Black: 270#true, Black: 238#(and (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 175#L55-18true, Black: 234#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1) (= (+ (- 1) ~result_8~0) 0)), 76#L49-7true, Black: 226#(= |thread3Thread1of1ForFork0_#t~ite9#1| 1), Black: 228#(= (+ (- 1) ~result_8~0) 0), Black: 232#(and (= 1 |thread3Thread1of1ForFork0_#t~ite12#1|) (= |thread3Thread1of1ForFork0_#t~ite9#1| 1)), 280#(= ~result_7~0 0), 272#(= ~length_0~0 0)]) [2022-07-21 09:00:03,063 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-07-21 09:00:03,063 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-21 09:00:03,063 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-21 09:00:03,063 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-07-21 09:00:03,143 INFO L129 PetriNetUnfolder]: 1208/4597 cut-off events. [2022-07-21 09:00:03,143 INFO L130 PetriNetUnfolder]: For 920/1126 co-relation queries the response was YES. [2022-07-21 09:00:03,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7974 conditions, 4597 events. 1208/4597 cut-off events. For 920/1126 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 46221 event pairs, 342 based on Foata normal form. 44/4054 useless extension candidates. Maximal degree in co-relation 7720. Up to 817 conditions per place. [2022-07-21 09:00:03,178 INFO L132 encePairwiseOnDemand]: 217/227 looper letters, 34 selfloop transitions, 7 changer transitions 4/244 dead transitions. [2022-07-21 09:00:03,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 244 transitions, 733 flow [2022-07-21 09:00:03,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:00:03,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 09:00:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1612 transitions. [2022-07-21 09:00:03,182 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8876651982378855 [2022-07-21 09:00:03,182 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1612 transitions. [2022-07-21 09:00:03,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1612 transitions. [2022-07-21 09:00:03,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:03,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1612 transitions. [2022-07-21 09:00:03,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 201.5) internal successors, (1612), 8 states have internal predecessors, (1612), 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) [2022-07-21 09:00:03,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 227.0) internal successors, (2043), 9 states have internal predecessors, (2043), 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) [2022-07-21 09:00:03,189 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 227.0) internal successors, (2043), 9 states have internal predecessors, (2043), 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) [2022-07-21 09:00:03,189 INFO L186 Difference]: Start difference. First operand has 222 places, 222 transitions, 579 flow. Second operand 8 states and 1612 transitions. [2022-07-21 09:00:03,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 244 transitions, 733 flow [2022-07-21 09:00:03,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 244 transitions, 725 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-21 09:00:03,200 INFO L242 Difference]: Finished difference. Result has 232 places, 226 transitions, 617 flow [2022-07-21 09:00:03,200 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=617, PETRI_PLACES=232, PETRI_TRANSITIONS=226} [2022-07-21 09:00:03,200 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 25 predicate places. [2022-07-21 09:00:03,201 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 226 transitions, 617 flow [2022-07-21 09:00:03,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 198.5) internal successors, (1588), 8 states have internal predecessors, (1588), 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) [2022-07-21 09:00:03,201 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:03,202 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:03,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 09:00:03,202 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:03,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:03,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1306237264, now seen corresponding path program 1 times [2022-07-21 09:00:03,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:03,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088568445] [2022-07-21 09:00:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:03,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:03,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:03,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088568445] [2022-07-21 09:00:03,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088568445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:03,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:03,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:00:03,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275796021] [2022-07-21 09:00:03,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:03,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:00:03,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:03,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:00:03,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:00:03,264 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 227 [2022-07-21 09:00:03,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 226 transitions, 617 flow. Second operand has 7 states, 7 states have (on average 202.28571428571428) internal successors, (1416), 7 states have internal predecessors, (1416), 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) [2022-07-21 09:00:03,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:03,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 227 [2022-07-21 09:00:03,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:03,593 INFO L129 PetriNetUnfolder]: 276/2516 cut-off events. [2022-07-21 09:00:03,593 INFO L130 PetriNetUnfolder]: For 289/491 co-relation queries the response was YES. [2022-07-21 09:00:03,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4070 conditions, 2516 events. 276/2516 cut-off events. For 289/491 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 26020 event pairs, 111 based on Foata normal form. 2/2290 useless extension candidates. Maximal degree in co-relation 4033. Up to 382 conditions per place. [2022-07-21 09:00:03,616 INFO L132 encePairwiseOnDemand]: 219/227 looper letters, 25 selfloop transitions, 5 changer transitions 10/245 dead transitions. [2022-07-21 09:00:03,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 245 transitions, 758 flow [2022-07-21 09:00:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:00:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-21 09:00:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1838 transitions. [2022-07-21 09:00:03,627 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.899657366617719 [2022-07-21 09:00:03,627 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1838 transitions. [2022-07-21 09:00:03,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1838 transitions. [2022-07-21 09:00:03,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:03,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1838 transitions. [2022-07-21 09:00:03,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 204.22222222222223) internal successors, (1838), 9 states have internal predecessors, (1838), 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) [2022-07-21 09:00:03,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 227.0) internal successors, (2270), 10 states have internal predecessors, (2270), 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) [2022-07-21 09:00:03,634 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 227.0) internal successors, (2270), 10 states have internal predecessors, (2270), 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) [2022-07-21 09:00:03,634 INFO L186 Difference]: Start difference. First operand has 232 places, 226 transitions, 617 flow. Second operand 9 states and 1838 transitions. [2022-07-21 09:00:03,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 245 transitions, 758 flow [2022-07-21 09:00:03,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 245 transitions, 747 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-07-21 09:00:03,643 INFO L242 Difference]: Finished difference. Result has 241 places, 230 transitions, 654 flow [2022-07-21 09:00:03,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=654, PETRI_PLACES=241, PETRI_TRANSITIONS=230} [2022-07-21 09:00:03,644 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 34 predicate places. [2022-07-21 09:00:03,644 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 230 transitions, 654 flow [2022-07-21 09:00:03,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 202.28571428571428) internal successors, (1416), 7 states have internal predecessors, (1416), 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) [2022-07-21 09:00:03,645 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:03,645 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:03,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 09:00:03,645 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:03,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:03,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1315973783, now seen corresponding path program 1 times [2022-07-21 09:00:03,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:03,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591173248] [2022-07-21 09:00:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:03,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:03,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:03,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591173248] [2022-07-21 09:00:03,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591173248] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:03,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:03,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:00:03,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960591488] [2022-07-21 09:00:03,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:03,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:00:03,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:03,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:00:03,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:00:03,752 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 227 [2022-07-21 09:00:03,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 230 transitions, 654 flow. Second operand has 8 states, 8 states have (on average 198.5) internal successors, (1588), 8 states have internal predecessors, (1588), 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) [2022-07-21 09:00:03,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:03,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 227 [2022-07-21 09:00:03,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:04,365 INFO L129 PetriNetUnfolder]: 1123/5216 cut-off events. [2022-07-21 09:00:04,366 INFO L130 PetriNetUnfolder]: For 2494/3022 co-relation queries the response was YES. [2022-07-21 09:00:04,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10290 conditions, 5216 events. 1123/5216 cut-off events. For 2494/3022 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 56776 event pairs, 543 based on Foata normal form. 119/4760 useless extension candidates. Maximal degree in co-relation 10253. Up to 1341 conditions per place. [2022-07-21 09:00:04,405 INFO L132 encePairwiseOnDemand]: 217/227 looper letters, 46 selfloop transitions, 7 changer transitions 17/275 dead transitions. [2022-07-21 09:00:04,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 275 transitions, 995 flow [2022-07-21 09:00:04,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:00:04,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-21 09:00:04,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2013 transitions. [2022-07-21 09:00:04,409 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.886784140969163 [2022-07-21 09:00:04,409 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2013 transitions. [2022-07-21 09:00:04,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2013 transitions. [2022-07-21 09:00:04,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:04,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2013 transitions. [2022-07-21 09:00:04,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 201.3) internal successors, (2013), 10 states have internal predecessors, (2013), 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) [2022-07-21 09:00:04,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 227.0) internal successors, (2497), 11 states have internal predecessors, (2497), 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) [2022-07-21 09:00:04,417 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 227.0) internal successors, (2497), 11 states have internal predecessors, (2497), 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) [2022-07-21 09:00:04,417 INFO L186 Difference]: Start difference. First operand has 241 places, 230 transitions, 654 flow. Second operand 10 states and 2013 transitions. [2022-07-21 09:00:04,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 275 transitions, 995 flow [2022-07-21 09:00:04,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 275 transitions, 986 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-07-21 09:00:04,438 INFO L242 Difference]: Finished difference. Result has 252 places, 234 transitions, 692 flow [2022-07-21 09:00:04,438 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=692, PETRI_PLACES=252, PETRI_TRANSITIONS=234} [2022-07-21 09:00:04,440 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 45 predicate places. [2022-07-21 09:00:04,440 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 234 transitions, 692 flow [2022-07-21 09:00:04,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 198.5) internal successors, (1588), 8 states have internal predecessors, (1588), 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) [2022-07-21 09:00:04,441 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:04,441 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:04,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 09:00:04,441 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:04,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:04,442 INFO L85 PathProgramCache]: Analyzing trace with hash 339156639, now seen corresponding path program 1 times [2022-07-21 09:00:04,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:04,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735218093] [2022-07-21 09:00:04,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:04,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:04,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:04,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735218093] [2022-07-21 09:00:04,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735218093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:04,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:04,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:00:04,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454557627] [2022-07-21 09:00:04,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:04,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:00:04,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:04,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:00:04,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:00:04,471 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 227 [2022-07-21 09:00:04,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 234 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 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) [2022-07-21 09:00:04,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:04,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 227 [2022-07-21 09:00:04,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:04,724 INFO L129 PetriNetUnfolder]: 83/2088 cut-off events. [2022-07-21 09:00:04,724 INFO L130 PetriNetUnfolder]: For 162/247 co-relation queries the response was YES. [2022-07-21 09:00:04,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3121 conditions, 2088 events. 83/2088 cut-off events. For 162/247 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 18234 event pairs, 24 based on Foata normal form. 0/1934 useless extension candidates. Maximal degree in co-relation 3090. Up to 75 conditions per place. [2022-07-21 09:00:04,743 INFO L132 encePairwiseOnDemand]: 223/227 looper letters, 12 selfloop transitions, 2 changer transitions 24/241 dead transitions. [2022-07-21 09:00:04,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 241 transitions, 757 flow [2022-07-21 09:00:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:00:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:00:04,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2022-07-21 09:00:04,745 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9427312775330396 [2022-07-21 09:00:04,745 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 642 transitions. [2022-07-21 09:00:04,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 642 transitions. [2022-07-21 09:00:04,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:04,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 642 transitions. [2022-07-21 09:00:04,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 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) [2022-07-21 09:00:04,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:04,748 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:04,748 INFO L186 Difference]: Start difference. First operand has 252 places, 234 transitions, 692 flow. Second operand 3 states and 642 transitions. [2022-07-21 09:00:04,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 241 transitions, 757 flow [2022-07-21 09:00:04,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 241 transitions, 748 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-07-21 09:00:04,756 INFO L242 Difference]: Finished difference. Result has 249 places, 215 transitions, 611 flow [2022-07-21 09:00:04,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=611, PETRI_PLACES=249, PETRI_TRANSITIONS=215} [2022-07-21 09:00:04,757 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 42 predicate places. [2022-07-21 09:00:04,757 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 215 transitions, 611 flow [2022-07-21 09:00:04,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 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) [2022-07-21 09:00:04,758 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:04,758 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-21 09:00:04,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 09:00:04,759 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:04,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:04,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1101089880, now seen corresponding path program 1 times [2022-07-21 09:00:04,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:04,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974661147] [2022-07-21 09:00:04,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:04,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:04,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:04,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974661147] [2022-07-21 09:00:04,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974661147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:04,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:04,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:00:04,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023701354] [2022-07-21 09:00:04,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:04,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:00:04,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:04,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:00:04,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:00:04,789 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 227 [2022-07-21 09:00:04,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 215 transitions, 611 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-07-21 09:00:04,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:04,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 227 [2022-07-21 09:00:04,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:04,904 INFO L129 PetriNetUnfolder]: 31/1033 cut-off events. [2022-07-21 09:00:04,904 INFO L130 PetriNetUnfolder]: For 82/91 co-relation queries the response was YES. [2022-07-21 09:00:04,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1524 conditions, 1033 events. 31/1033 cut-off events. For 82/91 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7074 event pairs, 6 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1499. Up to 31 conditions per place. [2022-07-21 09:00:04,913 INFO L132 encePairwiseOnDemand]: 221/227 looper letters, 11 selfloop transitions, 3 changer transitions 12/222 dead transitions. [2022-07-21 09:00:04,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 222 transitions, 676 flow [2022-07-21 09:00:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:00:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 09:00:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2022-07-21 09:00:04,915 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.933920704845815 [2022-07-21 09:00:04,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 636 transitions. [2022-07-21 09:00:04,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 636 transitions. [2022-07-21 09:00:04,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:04,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 636 transitions. [2022-07-21 09:00:04,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 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) [2022-07-21 09:00:04,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:04,918 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2022-07-21 09:00:04,919 INFO L186 Difference]: Start difference. First operand has 249 places, 215 transitions, 611 flow. Second operand 3 states and 636 transitions. [2022-07-21 09:00:04,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 222 transitions, 676 flow [2022-07-21 09:00:04,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 222 transitions, 662 flow, removed 6 selfloop flow, removed 5 redundant places. [2022-07-21 09:00:04,924 INFO L242 Difference]: Finished difference. Result has 234 places, 209 transitions, 578 flow [2022-07-21 09:00:04,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=234, PETRI_TRANSITIONS=209} [2022-07-21 09:00:04,925 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 27 predicate places. [2022-07-21 09:00:04,925 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 209 transitions, 578 flow [2022-07-21 09:00:04,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-07-21 09:00:04,926 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:04,926 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:00:04,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 09:00:04,926 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:04,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:04,927 INFO L85 PathProgramCache]: Analyzing trace with hash -141531245, now seen corresponding path program 1 times [2022-07-21 09:00:04,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:04,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258779200] [2022-07-21 09:00:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:04,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:05,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:05,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258779200] [2022-07-21 09:00:05,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258779200] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:05,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:05,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-07-21 09:00:05,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363318383] [2022-07-21 09:00:05,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:05,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-21 09:00:05,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:05,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-21 09:00:05,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2022-07-21 09:00:05,305 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 227 [2022-07-21 09:00:05,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 209 transitions, 578 flow. Second operand has 28 states, 28 states have (on average 147.39285714285714) internal successors, (4127), 28 states have internal predecessors, (4127), 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) [2022-07-21 09:00:05,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:05,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 227 [2022-07-21 09:00:05,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:00:22,176 INFO L129 PetriNetUnfolder]: 15870/36360 cut-off events. [2022-07-21 09:00:22,176 INFO L130 PetriNetUnfolder]: For 7726/7769 co-relation queries the response was YES. [2022-07-21 09:00:22,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69705 conditions, 36360 events. 15870/36360 cut-off events. For 7726/7769 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 371610 event pairs, 2856 based on Foata normal form. 13/34966 useless extension candidates. Maximal degree in co-relation 69682. Up to 3237 conditions per place. [2022-07-21 09:00:22,439 INFO L132 encePairwiseOnDemand]: 191/227 looper letters, 1189 selfloop transitions, 88 changer transitions 661/2070 dead transitions. [2022-07-21 09:00:22,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 2070 transitions, 9207 flow [2022-07-21 09:00:22,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 235 states. [2022-07-21 09:00:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2022-07-21 09:00:22,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 35963 transitions. [2022-07-21 09:00:22,484 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6741587777673634 [2022-07-21 09:00:22,485 INFO L72 ComplementDD]: Start complementDD. Operand 235 states and 35963 transitions. [2022-07-21 09:00:22,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 235 states and 35963 transitions. [2022-07-21 09:00:22,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:00:22,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 235 states and 35963 transitions. [2022-07-21 09:00:22,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 236 states, 235 states have (on average 153.03404255319148) internal successors, (35963), 235 states have internal predecessors, (35963), 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) [2022-07-21 09:00:22,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 236 states, 236 states have (on average 227.0) internal successors, (53572), 236 states have internal predecessors, (53572), 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) [2022-07-21 09:00:22,632 INFO L81 ComplementDD]: Finished complementDD. Result has 236 states, 236 states have (on average 227.0) internal successors, (53572), 236 states have internal predecessors, (53572), 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) [2022-07-21 09:00:22,632 INFO L186 Difference]: Start difference. First operand has 234 places, 209 transitions, 578 flow. Second operand 235 states and 35963 transitions. [2022-07-21 09:00:22,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 2070 transitions, 9207 flow [2022-07-21 09:00:22,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 2070 transitions, 8961 flow, removed 120 selfloop flow, removed 7 redundant places. [2022-07-21 09:00:22,829 INFO L242 Difference]: Finished difference. Result has 678 places, 286 transitions, 1809 flow [2022-07-21 09:00:22,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=235, PETRI_FLOW=1809, PETRI_PLACES=678, PETRI_TRANSITIONS=286} [2022-07-21 09:00:22,830 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 471 predicate places. [2022-07-21 09:00:22,830 INFO L495 AbstractCegarLoop]: Abstraction has has 678 places, 286 transitions, 1809 flow [2022-07-21 09:00:22,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 147.39285714285714) internal successors, (4127), 28 states have internal predecessors, (4127), 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) [2022-07-21 09:00:22,831 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:00:22,831 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:00:22,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 09:00:22,832 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:00:22,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:00:22,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1967864813, now seen corresponding path program 2 times [2022-07-21 09:00:22,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:00:22,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497767306] [2022-07-21 09:00:22,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:00:22,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:00:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:00:23,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:00:23,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:00:23,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497767306] [2022-07-21 09:00:23,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497767306] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:00:23,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:00:23,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-07-21 09:00:23,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560214579] [2022-07-21 09:00:23,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:00:23,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-21 09:00:23,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:00:23,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-21 09:00:23,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2022-07-21 09:00:23,175 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 227 [2022-07-21 09:00:23,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 678 places, 286 transitions, 1809 flow. Second operand has 28 states, 28 states have (on average 147.39285714285714) internal successors, (4127), 28 states have internal predecessors, (4127), 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) [2022-07-21 09:00:23,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:00:23,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 227 [2022-07-21 09:00:23,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand