./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa --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 a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:01:54,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:01:54,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:01:54,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:01:54,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:01:54,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:01:54,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:01:54,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:01:54,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:01:54,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:01:54,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:01:54,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:01:54,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:01:54,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:01:54,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:01:54,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:01:54,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:01:54,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:01:54,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:01:54,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:01:54,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:01:54,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:01:54,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:01:54,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:01:54,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:01:54,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:01:54,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:01:54,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:01:54,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:01:54,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:01:54,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:01:54,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:01:54,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:01:54,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:01:54,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:01:54,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:01:54,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:01:54,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:01:54,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:01:54,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:01:54,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:01:54,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 20:01:54,937 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:01:54,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:01:54,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:01:54,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:01:54,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:01:54,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:01:54,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:01:54,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:01:54,938 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:01:54,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:01:54,939 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:01:54,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:01:54,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:01:54,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:01:54,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:01:54,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:01:54,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:01:54,939 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:01:54,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:01:54,940 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:01:54,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:01:54,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:01:54,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:01:54,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:01:54,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:01:54,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:01:54,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:01:54,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:01:54,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:01:54,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:01:54,941 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:01:54,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:01:54,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:01:54,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:01:54,941 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b [2021-12-06 20:01:55,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:01:55,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:01:55,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:01:55,141 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:01:55,142 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:01:55,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2021-12-06 20:01:55,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/data/07eeb8c48/ed40dd79f6244a2c81e6db2ff087ab8d/FLAG675f88c74 [2021-12-06 20:01:55,553 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:01:55,554 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2021-12-06 20:01:55,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/data/07eeb8c48/ed40dd79f6244a2c81e6db2ff087ab8d/FLAG675f88c74 [2021-12-06 20:01:55,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/data/07eeb8c48/ed40dd79f6244a2c81e6db2ff087ab8d [2021-12-06 20:01:55,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:01:55,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:01:55,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:01:55,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:01:55,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:01:55,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aafb7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55, skipping insertion in model container [2021-12-06 20:01:55,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:01:55,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:01:55,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c[3072,3085] [2021-12-06 20:01:55,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:01:55,725 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:01:55,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c[3072,3085] [2021-12-06 20:01:55,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:01:55,754 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:01:55,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55 WrapperNode [2021-12-06 20:01:55,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:01:55,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:01:55,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:01:55,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:01:55,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,787 INFO L137 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 176 [2021-12-06 20:01:55,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:01:55,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:01:55,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:01:55,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:01:55,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:01:55,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:01:55,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:01:55,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:01:55,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (1/1) ... [2021-12-06 20:01:55,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:01:55,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:01:55,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:01:55,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fbec10f-133b-4239-b1af-6baa8877f29a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:01:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:01:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-06 20:01:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-06 20:01:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-06 20:01:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-06 20:01:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-06 20:01:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-06 20:01:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:01:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:01:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:01:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:01:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:01:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:01:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:01:55,889 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 20:01:55,966 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:01:55,967 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:01:56,168 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:01:56,176 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:01:56,176 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 20:01:56,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:01:56 BoogieIcfgContainer [2021-12-06 20:01:56,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:01:56,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:01:56,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:01:56,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:01:56,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:01:55" (1/3) ... [2021-12-06 20:01:56,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0a8624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:01:56, skipping insertion in model container [2021-12-06 20:01:56,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:01:55" (2/3) ... [2021-12-06 20:01:56,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0a8624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:01:56, skipping insertion in model container [2021-12-06 20:01:56,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:01:56" (3/3) ... [2021-12-06 20:01:56,184 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2021-12-06 20:01:56,187 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 20:01:56,187 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:01:56,187 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:01:56,188 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 20:01:56,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,231 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,231 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,231 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,231 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,231 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,232 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,232 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,232 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,232 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,232 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,232 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,232 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,237 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,237 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,237 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,237 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,238 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,238 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,238 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,238 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,238 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,238 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,238 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,248 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,249 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,252 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,252 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,253 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,254 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,255 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,256 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,256 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,256 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,256 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,256 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,256 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,256 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,257 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,258 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,258 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,258 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,258 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,258 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,258 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,258 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,259 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,259 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,259 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,259 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,259 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,259 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,259 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,260 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,260 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,260 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,260 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,260 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,260 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,260 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,260 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,261 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,261 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,261 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,261 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,261 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,261 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,262 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,262 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,262 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,262 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,262 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,262 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,262 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,263 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,263 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,263 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,263 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,263 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,263 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,263 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,264 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,264 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,264 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,264 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,264 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,264 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,264 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,265 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,265 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,265 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,265 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,265 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,265 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,265 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,266 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,266 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,269 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,269 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,269 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,270 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,277 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,277 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,277 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,277 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,277 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,277 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,278 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,278 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,278 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,278 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,278 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,279 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,279 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:01:56,283 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-12-06 20:01:56,326 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:01:56,332 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:01:56,332 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-06 20:01:56,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 232 transitions, 488 flow [2021-12-06 20:01:56,410 INFO L129 PetriNetUnfolder]: 17/229 cut-off events. [2021-12-06 20:01:56,410 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-06 20:01:56,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 229 events. 17/229 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 492 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 154. Up to 2 conditions per place. [2021-12-06 20:01:56,415 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 232 transitions, 488 flow [2021-12-06 20:01:56,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 218 transitions, 454 flow [2021-12-06 20:01:56,453 INFO L129 PetriNetUnfolder]: 17/217 cut-off events. [2021-12-06 20:01:56,454 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-06 20:01:56,454 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:01:56,454 INFO L254 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] [2021-12-06 20:01:56,455 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:01:56,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:01:56,459 INFO L85 PathProgramCache]: Analyzing trace with hash -360060123, now seen corresponding path program 1 times [2021-12-06 20:01:56,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:01:56,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824078017] [2021-12-06 20:01:56,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:01:56,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:01:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:01:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:01:56,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:01:56,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824078017] [2021-12-06 20:01:56,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824078017] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:01:56,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:01:56,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:01:56,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646095492] [2021-12-06 20:01:56,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:01:56,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:01:56,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:01:56,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:01:56,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:01:56,841 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 232 [2021-12-06 20:01:56,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 218 transitions, 454 flow. Second operand has 8 states, 8 states have (on average 199.75) internal successors, (1598), 8 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:56,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:01:56,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 232 [2021-12-06 20:01:56,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:01:57,100 INFO L129 PetriNetUnfolder]: 135/593 cut-off events. [2021-12-06 20:01:57,101 INFO L130 PetriNetUnfolder]: For 180/180 co-relation queries the response was YES. [2021-12-06 20:01:57,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 940 conditions, 593 events. 135/593 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3279 event pairs, 26 based on Foata normal form. 109/671 useless extension candidates. Maximal degree in co-relation 740. Up to 68 conditions per place. [2021-12-06 20:01:57,113 INFO L132 encePairwiseOnDemand]: 211/232 looper letters, 49 selfloop transitions, 17 changer transitions 16/266 dead transitions. [2021-12-06 20:01:57,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 266 transitions, 753 flow [2021-12-06 20:01:57,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 20:01:57,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 20:01:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2676 transitions. [2021-12-06 20:01:57,133 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8872679045092838 [2021-12-06 20:01:57,134 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2676 transitions. [2021-12-06 20:01:57,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2676 transitions. [2021-12-06 20:01:57,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:01:57,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2676 transitions. [2021-12-06 20:01:57,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 205.84615384615384) internal successors, (2676), 13 states have internal predecessors, (2676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:57,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 232.0) internal successors, (3248), 14 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:57,177 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 232.0) internal successors, (3248), 14 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:57,179 INFO L186 Difference]: Start difference. First operand has 211 places, 218 transitions, 454 flow. Second operand 13 states and 2676 transitions. [2021-12-06 20:01:57,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 266 transitions, 753 flow [2021-12-06 20:01:57,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 266 transitions, 715 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-12-06 20:01:57,192 INFO L242 Difference]: Finished difference. Result has 224 places, 222 transitions, 535 flow [2021-12-06 20:01:57,194 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=535, PETRI_PLACES=224, PETRI_TRANSITIONS=222} [2021-12-06 20:01:57,197 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 13 predicate places. [2021-12-06 20:01:57,198 INFO L470 AbstractCegarLoop]: Abstraction has has 224 places, 222 transitions, 535 flow [2021-12-06 20:01:57,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 199.75) internal successors, (1598), 8 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:57,199 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:01:57,200 INFO L254 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] [2021-12-06 20:01:57,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:01:57,200 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:01:57,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:01:57,201 INFO L85 PathProgramCache]: Analyzing trace with hash -643837919, now seen corresponding path program 1 times [2021-12-06 20:01:57,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:01:57,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728324585] [2021-12-06 20:01:57,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:01:57,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:01:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:01:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:01:57,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:01:57,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728324585] [2021-12-06 20:01:57,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728324585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:01:57,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:01:57,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:01:57,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266649763] [2021-12-06 20:01:57,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:01:57,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:01:57,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:01:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:01:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:01:57,375 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:01:57,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 222 transitions, 535 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:57,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:01:57,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:01:57,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:01:57,753 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][151], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 249#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, 67#L56-18true, 21#thread1ENTRYtrue, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 251#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0))]) [2021-12-06 20:01:57,753 INFO L384 tUnfolder$Statistics]: this new event has 69 ancestors and is cut-off event [2021-12-06 20:01:57,753 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2021-12-06 20:01:57,753 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2021-12-06 20:01:57,753 INFO L387 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2021-12-06 20:01:57,780 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][151], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 249#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, 53#L44-2true, 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 251#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0))]) [2021-12-06 20:01:57,781 INFO L384 tUnfolder$Statistics]: this new event has 70 ancestors and is cut-off event [2021-12-06 20:01:57,781 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:01:57,781 INFO L387 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2021-12-06 20:01:57,781 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:01:57,786 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][151], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 249#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 146#L44true, 57#L74-4true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 251#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0))]) [2021-12-06 20:01:57,786 INFO L384 tUnfolder$Statistics]: this new event has 70 ancestors and is cut-off event [2021-12-06 20:01:57,786 INFO L387 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2021-12-06 20:01:57,786 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:01:57,786 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:01:57,817 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][151], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 249#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 150#L44-5true, 57#L74-4true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 251#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0))]) [2021-12-06 20:01:57,818 INFO L384 tUnfolder$Statistics]: this new event has 71 ancestors and is cut-off event [2021-12-06 20:01:57,818 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:01:57,818 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:01:57,818 INFO L387 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2021-12-06 20:01:57,827 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][151], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 249#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 170#L44-3true, Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, 67#L56-18true, Black: 231#(= ~result_7~0 0), 228#true, Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 251#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0))]) [2021-12-06 20:01:57,827 INFO L384 tUnfolder$Statistics]: this new event has 71 ancestors and is cut-off event [2021-12-06 20:01:57,827 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:01:57,827 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:01:57,827 INFO L387 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2021-12-06 20:01:57,855 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][151], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 249#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, 43#L44-8true, 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 251#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0))]) [2021-12-06 20:01:57,855 INFO L384 tUnfolder$Statistics]: this new event has 72 ancestors and is cut-off event [2021-12-06 20:01:57,855 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:01:57,855 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2021-12-06 20:01:57,856 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:01:58,155 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][151], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 249#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, 67#L56-18true, 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 231#(= ~result_7~0 0), 228#true, Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 251#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0))]) [2021-12-06 20:01:58,156 INFO L384 tUnfolder$Statistics]: this new event has 82 ancestors and is cut-off event [2021-12-06 20:01:58,156 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:01:58,156 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:01:58,156 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2021-12-06 20:01:58,296 INFO L129 PetriNetUnfolder]: 1263/7651 cut-off events. [2021-12-06 20:01:58,296 INFO L130 PetriNetUnfolder]: For 889/1034 co-relation queries the response was YES. [2021-12-06 20:01:58,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11234 conditions, 7651 events. 1263/7651 cut-off events. For 889/1034 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 94230 event pairs, 314 based on Foata normal form. 34/6708 useless extension candidates. Maximal degree in co-relation 11196. Up to 986 conditions per place. [2021-12-06 20:01:58,364 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 63 selfloop transitions, 14 changer transitions 0/269 dead transitions. [2021-12-06 20:01:58,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 269 transitions, 797 flow [2021-12-06 20:01:58,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:01:58,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:01:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1047 transitions. [2021-12-06 20:01:58,368 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9025862068965518 [2021-12-06 20:01:58,368 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1047 transitions. [2021-12-06 20:01:58,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1047 transitions. [2021-12-06 20:01:58,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:01:58,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1047 transitions. [2021-12-06 20:01:58,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.4) internal successors, (1047), 5 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:58,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:58,375 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:58,375 INFO L186 Difference]: Start difference. First operand has 224 places, 222 transitions, 535 flow. Second operand 5 states and 1047 transitions. [2021-12-06 20:01:58,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 269 transitions, 797 flow [2021-12-06 20:01:58,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 269 transitions, 793 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-12-06 20:01:58,404 INFO L242 Difference]: Finished difference. Result has 223 places, 234 transitions, 641 flow [2021-12-06 20:01:58,405 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=641, PETRI_PLACES=223, PETRI_TRANSITIONS=234} [2021-12-06 20:01:58,406 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 12 predicate places. [2021-12-06 20:01:58,406 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 234 transitions, 641 flow [2021-12-06 20:01:58,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:58,407 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:01:58,407 INFO L254 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] [2021-12-06 20:01:58,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:01:58,407 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:01:58,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:01:58,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1393221653, now seen corresponding path program 2 times [2021-12-06 20:01:58,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:01:58,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493205940] [2021-12-06 20:01:58,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:01:58,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:01:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:01:58,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:01:58,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:01:58,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493205940] [2021-12-06 20:01:58,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493205940] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:01:58,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:01:58,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:01:58,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880095746] [2021-12-06 20:01:58,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:01:58,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:01:58,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:01:58,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:01:58,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:01:58,582 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:01:58,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 234 transitions, 641 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:58,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:01:58,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:01:58,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:01:59,444 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] AssignedVars[][195], [60#L56-3true, Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 161#L50-6true, 88#L75-2true, 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:01:59,445 INFO L384 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2021-12-06 20:01:59,445 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2021-12-06 20:01:59,445 INFO L387 tUnfolder$Statistics]: existing Event has 77 ancestors and is cut-off event [2021-12-06 20:01:59,445 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2021-12-06 20:01:59,554 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][227], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, 146#L44true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:01:59,554 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2021-12-06 20:01:59,554 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:01:59,554 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:01:59,554 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:01:59,559 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][171], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, 67#L56-18true, 21#thread1ENTRYtrue, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:01:59,559 INFO L384 tUnfolder$Statistics]: this new event has 87 ancestors and is cut-off event [2021-12-06 20:01:59,559 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:01:59,559 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2021-12-06 20:01:59,559 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2021-12-06 20:01:59,563 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][171], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, 146#L44true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:01:59,563 INFO L384 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2021-12-06 20:01:59,563 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:01:59,563 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:01:59,563 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:01:59,564 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][171], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, 146#L44true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:01:59,564 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2021-12-06 20:01:59,564 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:01:59,564 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:01:59,564 INFO L387 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2021-12-06 20:01:59,564 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:01:59,570 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][171], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 170#L44-3true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:01:59,570 INFO L384 tUnfolder$Statistics]: this new event has 91 ancestors and is cut-off event [2021-12-06 20:01:59,570 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:01:59,570 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2021-12-06 20:01:59,571 INFO L387 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2021-12-06 20:01:59,640 INFO L129 PetriNetUnfolder]: 1477/8881 cut-off events. [2021-12-06 20:01:59,640 INFO L130 PetriNetUnfolder]: For 2510/2944 co-relation queries the response was YES. [2021-12-06 20:01:59,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14773 conditions, 8881 events. 1477/8881 cut-off events. For 2510/2944 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 110382 event pairs, 336 based on Foata normal form. 95/8393 useless extension candidates. Maximal degree in co-relation 12312. Up to 816 conditions per place. [2021-12-06 20:01:59,708 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 91 selfloop transitions, 22 changer transitions 4/305 dead transitions. [2021-12-06 20:01:59,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 305 transitions, 1168 flow [2021-12-06 20:01:59,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:01:59,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:01:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1054 transitions. [2021-12-06 20:01:59,711 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9086206896551724 [2021-12-06 20:01:59,711 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1054 transitions. [2021-12-06 20:01:59,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1054 transitions. [2021-12-06 20:01:59,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:01:59,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1054 transitions. [2021-12-06 20:01:59,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.8) internal successors, (1054), 5 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:59,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:59,717 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:59,717 INFO L186 Difference]: Start difference. First operand has 223 places, 234 transitions, 641 flow. Second operand 5 states and 1054 transitions. [2021-12-06 20:01:59,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 305 transitions, 1168 flow [2021-12-06 20:01:59,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 305 transitions, 1168 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 20:01:59,741 INFO L242 Difference]: Finished difference. Result has 231 places, 250 transitions, 843 flow [2021-12-06 20:01:59,741 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=843, PETRI_PLACES=231, PETRI_TRANSITIONS=250} [2021-12-06 20:01:59,742 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 20 predicate places. [2021-12-06 20:01:59,742 INFO L470 AbstractCegarLoop]: Abstraction has has 231 places, 250 transitions, 843 flow [2021-12-06 20:01:59,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:59,743 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:01:59,743 INFO L254 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] [2021-12-06 20:01:59,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:01:59,743 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:01:59,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:01:59,744 INFO L85 PathProgramCache]: Analyzing trace with hash 995740843, now seen corresponding path program 3 times [2021-12-06 20:01:59,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:01:59,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088555925] [2021-12-06 20:01:59,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:01:59,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:01:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:01:59,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:01:59,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:01:59,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088555925] [2021-12-06 20:01:59,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088555925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:01:59,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:01:59,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:01:59,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752216012] [2021-12-06 20:01:59,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:01:59,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:01:59,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:01:59,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:01:59,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:01:59,857 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:01:59,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 250 transitions, 843 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:01:59,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:01:59,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:01:59,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:00,783 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][260], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, 146#L44true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,783 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2021-12-06 20:02:00,783 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:02:00,783 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:02:00,783 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:00,791 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][182], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 21#thread1ENTRYtrue, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,791 INFO L384 tUnfolder$Statistics]: this new event has 87 ancestors and is cut-off event [2021-12-06 20:02:00,791 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:02:00,791 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2021-12-06 20:02:00,791 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2021-12-06 20:02:00,793 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][182], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, 146#L44true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,793 INFO L384 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2021-12-06 20:02:00,793 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:02:00,794 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:00,794 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:02:00,794 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][182], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, 146#L44true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,794 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is cut-off event [2021-12-06 20:02:00,795 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:02:00,795 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:00,795 INFO L387 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2021-12-06 20:02:00,795 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:02:00,796 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][260], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 170#L44-3true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,796 INFO L384 tUnfolder$Statistics]: this new event has 91 ancestors and is cut-off event [2021-12-06 20:02:00,796 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2021-12-06 20:02:00,796 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:02:00,796 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2021-12-06 20:02:00,800 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][182], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, 53#L44-2true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,800 INFO L384 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2021-12-06 20:02:00,800 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:00,800 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:02:00,800 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:02:00,805 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][182], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 170#L44-3true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,805 INFO L384 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2021-12-06 20:02:00,805 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2021-12-06 20:02:00,805 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2021-12-06 20:02:00,805 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:02:00,806 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][182], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 170#L44-3true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,806 INFO L384 tUnfolder$Statistics]: this new event has 91 ancestors and is cut-off event [2021-12-06 20:02:00,806 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2021-12-06 20:02:00,806 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2021-12-06 20:02:00,806 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:02:00,806 INFO L387 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2021-12-06 20:02:00,809 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][182], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 150#L44-5true, 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,809 INFO L384 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2021-12-06 20:02:00,809 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2021-12-06 20:02:00,809 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2021-12-06 20:02:00,809 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:02:00,867 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][260], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,867 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-06 20:02:00,867 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:00,867 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:00,867 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:00,871 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][182], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, Black: 231#(= ~result_7~0 0), 228#true, Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,871 INFO L384 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2021-12-06 20:02:00,871 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:00,871 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:00,871 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:00,872 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][182], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 231#(= ~result_7~0 0), Black: 241#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0))]) [2021-12-06 20:02:00,873 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-06 20:02:00,873 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:00,873 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:00,873 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:00,873 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2021-12-06 20:02:00,923 INFO L129 PetriNetUnfolder]: 1602/10734 cut-off events. [2021-12-06 20:02:00,923 INFO L130 PetriNetUnfolder]: For 5516/5941 co-relation queries the response was YES. [2021-12-06 20:02:00,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19347 conditions, 10734 events. 1602/10734 cut-off events. For 5516/5941 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 138616 event pairs, 354 based on Foata normal form. 174/10367 useless extension candidates. Maximal degree in co-relation 16413. Up to 969 conditions per place. [2021-12-06 20:02:01,021 INFO L132 encePairwiseOnDemand]: 214/232 looper letters, 103 selfloop transitions, 50 changer transitions 2/343 dead transitions. [2021-12-06 20:02:01,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 343 transitions, 1689 flow [2021-12-06 20:02:01,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:02:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:02:01,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1270 transitions. [2021-12-06 20:02:01,024 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9123563218390804 [2021-12-06 20:02:01,024 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1270 transitions. [2021-12-06 20:02:01,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1270 transitions. [2021-12-06 20:02:01,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:01,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1270 transitions. [2021-12-06 20:02:01,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.66666666666666) internal successors, (1270), 6 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:01,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:01,031 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:01,031 INFO L186 Difference]: Start difference. First operand has 231 places, 250 transitions, 843 flow. Second operand 6 states and 1270 transitions. [2021-12-06 20:02:01,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 343 transitions, 1689 flow [2021-12-06 20:02:01,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 343 transitions, 1687 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-12-06 20:02:01,058 INFO L242 Difference]: Finished difference. Result has 238 places, 283 transitions, 1321 flow [2021-12-06 20:02:01,058 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1321, PETRI_PLACES=238, PETRI_TRANSITIONS=283} [2021-12-06 20:02:01,059 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 27 predicate places. [2021-12-06 20:02:01,059 INFO L470 AbstractCegarLoop]: Abstraction has has 238 places, 283 transitions, 1321 flow [2021-12-06 20:02:01,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:01,060 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:01,060 INFO L254 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] [2021-12-06 20:02:01,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 20:02:01,060 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:01,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:01,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2106818879, now seen corresponding path program 4 times [2021-12-06 20:02:01,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:01,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39900091] [2021-12-06 20:02:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:01,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:01,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:01,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39900091] [2021-12-06 20:02:01,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39900091] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:01,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:01,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:01,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021206485] [2021-12-06 20:02:01,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:01,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:01,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:01,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:01,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:01,198 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:01,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 283 transitions, 1321 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:01,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:01,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:01,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:02,145 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][179], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, 43#L44-8true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 228#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:02,145 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2021-12-06 20:02:02,146 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2021-12-06 20:02:02,146 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:02,146 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:02:02,155 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][179], [Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 146#L44true, 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 231#(= ~result_7~0 0), 228#true]) [2021-12-06 20:02:02,156 INFO L384 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2021-12-06 20:02:02,156 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:02,156 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:02:02,156 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:02:02,176 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][179], [Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 170#L44-3true, Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 231#(= ~result_7~0 0), 228#true]) [2021-12-06 20:02:02,176 INFO L384 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2021-12-06 20:02:02,176 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2021-12-06 20:02:02,176 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2021-12-06 20:02:02,177 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:02:02,276 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][179], [Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 231#(= ~result_7~0 0), 228#true]) [2021-12-06 20:02:02,276 INFO L384 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2021-12-06 20:02:02,276 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:02,276 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:02,276 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:02,284 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][260], [Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 228#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:02,285 INFO L384 tUnfolder$Statistics]: this new event has 104 ancestors and is cut-off event [2021-12-06 20:02:02,285 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:02,285 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:02,285 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:02,291 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][179], [Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 228#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:02,291 INFO L384 tUnfolder$Statistics]: this new event has 104 ancestors and is cut-off event [2021-12-06 20:02:02,291 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:02,291 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:02,291 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2021-12-06 20:02:02,291 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:02,347 INFO L129 PetriNetUnfolder]: 1614/11370 cut-off events. [2021-12-06 20:02:02,348 INFO L130 PetriNetUnfolder]: For 9607/10100 co-relation queries the response was YES. [2021-12-06 20:02:02,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21345 conditions, 11370 events. 1614/11370 cut-off events. For 9607/10100 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 147554 event pairs, 289 based on Foata normal form. 106/10848 useless extension candidates. Maximal degree in co-relation 18054. Up to 820 conditions per place. [2021-12-06 20:02:02,438 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 104 selfloop transitions, 48 changer transitions 1/341 dead transitions. [2021-12-06 20:02:02,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 341 transitions, 2031 flow [2021-12-06 20:02:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:02,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1056 transitions. [2021-12-06 20:02:02,441 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9103448275862069 [2021-12-06 20:02:02,441 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1056 transitions. [2021-12-06 20:02:02,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1056 transitions. [2021-12-06 20:02:02,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:02,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1056 transitions. [2021-12-06 20:02:02,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 211.2) internal successors, (1056), 5 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:02,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:02,447 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:02,447 INFO L186 Difference]: Start difference. First operand has 238 places, 283 transitions, 1321 flow. Second operand 5 states and 1056 transitions. [2021-12-06 20:02:02,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 341 transitions, 2031 flow [2021-12-06 20:02:02,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 341 transitions, 2019 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 20:02:02,476 INFO L242 Difference]: Finished difference. Result has 243 places, 297 transitions, 1628 flow [2021-12-06 20:02:02,477 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=1309, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1628, PETRI_PLACES=243, PETRI_TRANSITIONS=297} [2021-12-06 20:02:02,478 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 32 predicate places. [2021-12-06 20:02:02,478 INFO L470 AbstractCegarLoop]: Abstraction has has 243 places, 297 transitions, 1628 flow [2021-12-06 20:02:02,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:02,478 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:02,479 INFO L254 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] [2021-12-06 20:02:02,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 20:02:02,479 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:02,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:02,479 INFO L85 PathProgramCache]: Analyzing trace with hash -640899985, now seen corresponding path program 5 times [2021-12-06 20:02:02,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:02,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618189537] [2021-12-06 20:02:02,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:02,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:02,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:02,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618189537] [2021-12-06 20:02:02,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618189537] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:02,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:02,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:02,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106536875] [2021-12-06 20:02:02,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:02,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:02,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:02,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:02,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:02,583 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:02,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 297 transitions, 1628 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:02,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:02,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:02,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:03,699 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][206], [Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 146#L44true, 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 231#(= ~result_7~0 0), 228#true]) [2021-12-06 20:02:03,699 INFO L384 tUnfolder$Statistics]: this new event has 88 ancestors and is cut-off event [2021-12-06 20:02:03,699 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:02:03,700 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:03,700 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:02:03,713 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][206], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 170#L44-3true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 228#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:03,714 INFO L384 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2021-12-06 20:02:03,714 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2021-12-06 20:02:03,714 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2021-12-06 20:02:03,714 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:02:03,849 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][206], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 228#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:03,849 INFO L384 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2021-12-06 20:02:03,849 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:03,849 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:03,849 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:03,858 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][321], [Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 228#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:03,858 INFO L384 tUnfolder$Statistics]: this new event has 104 ancestors and is cut-off event [2021-12-06 20:02:03,858 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:03,858 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:03,858 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:03,863 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][206], [Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 296#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 228#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:03,863 INFO L384 tUnfolder$Statistics]: this new event has 104 ancestors and is cut-off event [2021-12-06 20:02:03,863 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:03,863 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2021-12-06 20:02:03,863 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:03,863 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:03,913 INFO L129 PetriNetUnfolder]: 1625/11666 cut-off events. [2021-12-06 20:02:03,913 INFO L130 PetriNetUnfolder]: For 13690/14189 co-relation queries the response was YES. [2021-12-06 20:02:03,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22816 conditions, 11666 events. 1625/11666 cut-off events. For 13690/14189 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 152891 event pairs, 293 based on Foata normal form. 115/11162 useless extension candidates. Maximal degree in co-relation 18982. Up to 1352 conditions per place. [2021-12-06 20:02:03,997 INFO L132 encePairwiseOnDemand]: 214/232 looper letters, 146 selfloop transitions, 66 changer transitions 6/406 dead transitions. [2021-12-06 20:02:03,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 406 transitions, 3026 flow [2021-12-06 20:02:03,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:02:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:02:04,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1454 transitions. [2021-12-06 20:02:04,001 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.895320197044335 [2021-12-06 20:02:04,001 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1454 transitions. [2021-12-06 20:02:04,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1454 transitions. [2021-12-06 20:02:04,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:04,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1454 transitions. [2021-12-06 20:02:04,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 207.71428571428572) internal successors, (1454), 7 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:04,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:04,007 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:04,007 INFO L186 Difference]: Start difference. First operand has 243 places, 297 transitions, 1628 flow. Second operand 7 states and 1454 transitions. [2021-12-06 20:02:04,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 406 transitions, 3026 flow [2021-12-06 20:02:04,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 406 transitions, 2912 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-06 20:02:04,045 INFO L242 Difference]: Finished difference. Result has 252 places, 340 transitions, 2338 flow [2021-12-06 20:02:04,046 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=1557, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2338, PETRI_PLACES=252, PETRI_TRANSITIONS=340} [2021-12-06 20:02:04,046 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 41 predicate places. [2021-12-06 20:02:04,046 INFO L470 AbstractCegarLoop]: Abstraction has has 252 places, 340 transitions, 2338 flow [2021-12-06 20:02:04,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:04,047 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:04,047 INFO L254 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] [2021-12-06 20:02:04,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 20:02:04,047 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:04,048 INFO L85 PathProgramCache]: Analyzing trace with hash -463758803, now seen corresponding path program 6 times [2021-12-06 20:02:04,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:04,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851127728] [2021-12-06 20:02:04,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:04,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:04,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:04,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:04,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851127728] [2021-12-06 20:02:04,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851127728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:04,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:04,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:04,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704648471] [2021-12-06 20:02:04,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:04,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:04,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:04,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:04,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:04,119 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:04,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 340 transitions, 2338 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:04,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:04,120 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:04,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:05,117 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][205], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 170#L44-3true, Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:05,117 INFO L384 tUnfolder$Statistics]: this new event has 89 ancestors and is cut-off event [2021-12-06 20:02:05,117 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2021-12-06 20:02:05,117 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2021-12-06 20:02:05,117 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2021-12-06 20:02:05,263 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][205], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:05,263 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:05,263 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:02:05,263 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:05,263 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:05,270 INFO L129 PetriNetUnfolder]: 1594/10955 cut-off events. [2021-12-06 20:02:05,270 INFO L130 PetriNetUnfolder]: For 18058/18581 co-relation queries the response was YES. [2021-12-06 20:02:05,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23114 conditions, 10955 events. 1594/10955 cut-off events. For 18058/18581 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 141388 event pairs, 364 based on Foata normal form. 117/10491 useless extension candidates. Maximal degree in co-relation 19920. Up to 964 conditions per place. [2021-12-06 20:02:05,407 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 137 selfloop transitions, 76 changer transitions 1/402 dead transitions. [2021-12-06 20:02:05,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 402 transitions, 3320 flow [2021-12-06 20:02:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:05,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:05,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1052 transitions. [2021-12-06 20:02:05,411 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.906896551724138 [2021-12-06 20:02:05,411 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1052 transitions. [2021-12-06 20:02:05,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1052 transitions. [2021-12-06 20:02:05,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:05,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1052 transitions. [2021-12-06 20:02:05,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.4) internal successors, (1052), 5 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:05,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:05,416 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:05,416 INFO L186 Difference]: Start difference. First operand has 252 places, 340 transitions, 2338 flow. Second operand 5 states and 1052 transitions. [2021-12-06 20:02:05,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 402 transitions, 3320 flow [2021-12-06 20:02:05,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 402 transitions, 3292 flow, removed 14 selfloop flow, removed 0 redundant places. [2021-12-06 20:02:05,472 INFO L242 Difference]: Finished difference. Result has 259 places, 357 transitions, 2822 flow [2021-12-06 20:02:05,473 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=2266, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2822, PETRI_PLACES=259, PETRI_TRANSITIONS=357} [2021-12-06 20:02:05,474 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 48 predicate places. [2021-12-06 20:02:05,474 INFO L470 AbstractCegarLoop]: Abstraction has has 259 places, 357 transitions, 2822 flow [2021-12-06 20:02:05,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:05,474 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:05,474 INFO L254 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] [2021-12-06 20:02:05,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 20:02:05,475 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:05,475 INFO L85 PathProgramCache]: Analyzing trace with hash -90159537, now seen corresponding path program 1 times [2021-12-06 20:02:05,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:05,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535495284] [2021-12-06 20:02:05,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:05,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:05,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:05,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535495284] [2021-12-06 20:02:05,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535495284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:05,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:05,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:05,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917508087] [2021-12-06 20:02:05,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:05,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:05,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:05,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:05,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:05,578 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:05,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 357 transitions, 2822 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:05,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:05,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:05,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:07,237 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][213], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:07,237 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-06 20:02:07,237 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:07,237 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:07,237 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:07,328 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][402], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:07,328 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:07,328 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:07,328 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:07,328 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:07,329 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][213], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:07,329 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:07,330 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:02:07,330 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:07,330 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:07,330 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:07,340 INFO L129 PetriNetUnfolder]: 1707/13231 cut-off events. [2021-12-06 20:02:07,340 INFO L130 PetriNetUnfolder]: For 25562/26115 co-relation queries the response was YES. [2021-12-06 20:02:07,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27355 conditions, 13231 events. 1707/13231 cut-off events. For 25562/26115 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 178905 event pairs, 363 based on Foata normal form. 193/12740 useless extension candidates. Maximal degree in co-relation 23809. Up to 1397 conditions per place. [2021-12-06 20:02:07,431 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 226 selfloop transitions, 57 changer transitions 9/480 dead transitions. [2021-12-06 20:02:07,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 480 transitions, 4919 flow [2021-12-06 20:02:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1054 transitions. [2021-12-06 20:02:07,434 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9086206896551724 [2021-12-06 20:02:07,434 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1054 transitions. [2021-12-06 20:02:07,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1054 transitions. [2021-12-06 20:02:07,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:07,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1054 transitions. [2021-12-06 20:02:07,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.8) internal successors, (1054), 5 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:07,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:07,438 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:07,438 INFO L186 Difference]: Start difference. First operand has 259 places, 357 transitions, 2822 flow. Second operand 5 states and 1054 transitions. [2021-12-06 20:02:07,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 480 transitions, 4919 flow [2021-12-06 20:02:07,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 480 transitions, 4881 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 20:02:07,508 INFO L242 Difference]: Finished difference. Result has 266 places, 395 transitions, 3661 flow [2021-12-06 20:02:07,509 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=2753, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3661, PETRI_PLACES=266, PETRI_TRANSITIONS=395} [2021-12-06 20:02:07,509 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 55 predicate places. [2021-12-06 20:02:07,509 INFO L470 AbstractCegarLoop]: Abstraction has has 266 places, 395 transitions, 3661 flow [2021-12-06 20:02:07,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:07,510 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:07,510 INFO L254 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] [2021-12-06 20:02:07,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 20:02:07,510 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:07,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:07,510 INFO L85 PathProgramCache]: Analyzing trace with hash -335678097, now seen corresponding path program 2 times [2021-12-06 20:02:07,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:07,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50425843] [2021-12-06 20:02:07,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:07,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:07,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:07,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:07,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50425843] [2021-12-06 20:02:07,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50425843] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:07,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:07,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:07,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953156318] [2021-12-06 20:02:07,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:07,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:07,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:07,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:07,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:07,586 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:07,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 395 transitions, 3661 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:07,587 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:07,587 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:07,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:08,933 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][210], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 341#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:08,933 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-06 20:02:08,933 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:08,933 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:08,933 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:09,021 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][375], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 341#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:09,021 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:09,021 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:09,022 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:09,022 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:09,023 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][210], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 341#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:09,023 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:09,023 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:09,023 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:09,023 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:02:09,023 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:09,033 INFO L129 PetriNetUnfolder]: 1586/11944 cut-off events. [2021-12-06 20:02:09,033 INFO L130 PetriNetUnfolder]: For 27308/27722 co-relation queries the response was YES. [2021-12-06 20:02:09,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26182 conditions, 11944 events. 1586/11944 cut-off events. For 27308/27722 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 155795 event pairs, 334 based on Foata normal form. 144/11424 useless extension candidates. Maximal degree in co-relation 22647. Up to 1333 conditions per place. [2021-12-06 20:02:09,124 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 199 selfloop transitions, 66 changer transitions 2/455 dead transitions. [2021-12-06 20:02:09,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 455 transitions, 4871 flow [2021-12-06 20:02:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:09,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1049 transitions. [2021-12-06 20:02:09,126 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9043103448275862 [2021-12-06 20:02:09,126 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1049 transitions. [2021-12-06 20:02:09,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1049 transitions. [2021-12-06 20:02:09,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:09,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1049 transitions. [2021-12-06 20:02:09,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.8) internal successors, (1049), 5 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:09,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:09,131 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:09,131 INFO L186 Difference]: Start difference. First operand has 266 places, 395 transitions, 3661 flow. Second operand 5 states and 1049 transitions. [2021-12-06 20:02:09,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 455 transitions, 4871 flow [2021-12-06 20:02:09,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 455 transitions, 4871 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 20:02:09,211 INFO L242 Difference]: Finished difference. Result has 272 places, 396 transitions, 3904 flow [2021-12-06 20:02:09,212 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=3523, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3904, PETRI_PLACES=272, PETRI_TRANSITIONS=396} [2021-12-06 20:02:09,213 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 61 predicate places. [2021-12-06 20:02:09,213 INFO L470 AbstractCegarLoop]: Abstraction has has 272 places, 396 transitions, 3904 flow [2021-12-06 20:02:09,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:09,213 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:09,213 INFO L254 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] [2021-12-06 20:02:09,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 20:02:09,213 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:09,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1900244811, now seen corresponding path program 3 times [2021-12-06 20:02:09,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:09,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944459093] [2021-12-06 20:02:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:09,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:09,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:09,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944459093] [2021-12-06 20:02:09,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944459093] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:09,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:09,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:09,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426161536] [2021-12-06 20:02:09,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:09,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:09,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:09,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:09,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:09,306 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:09,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 396 transitions, 3904 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:09,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:09,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:09,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:10,790 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][220], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= 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256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 270#true, 67#L56-18true, 228#true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:10,790 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-06 20:02:10,790 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:10,790 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:10,790 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:10,884 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][390], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= 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(div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 270#true, 67#L56-18true, 228#true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 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~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:10,884 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:10,884 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:10,885 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:10,885 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:10,886 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][220], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= 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~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:10,886 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:10,886 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:10,886 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:10,886 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:10,886 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:02:10,896 INFO L129 PetriNetUnfolder]: 1656/13104 cut-off events. [2021-12-06 20:02:10,897 INFO L130 PetriNetUnfolder]: For 32429/32875 co-relation queries the response was YES. [2021-12-06 20:02:10,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28593 conditions, 13104 events. 1656/13104 cut-off events. For 32429/32875 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 175376 event pairs, 383 based on Foata normal form. 105/12479 useless extension candidates. Maximal degree in co-relation 24689. Up to 1577 conditions per place. [2021-12-06 20:02:10,993 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 230 selfloop transitions, 46 changer transitions 5/469 dead transitions. [2021-12-06 20:02:10,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 469 transitions, 5415 flow [2021-12-06 20:02:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:10,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1038 transitions. [2021-12-06 20:02:10,996 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8948275862068965 [2021-12-06 20:02:10,996 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1038 transitions. [2021-12-06 20:02:10,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1038 transitions. [2021-12-06 20:02:10,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:10,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1038 transitions. [2021-12-06 20:02:10,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.6) internal successors, (1038), 5 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:11,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:11,001 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:11,001 INFO L186 Difference]: Start difference. First operand has 272 places, 396 transitions, 3904 flow. Second operand 5 states and 1038 transitions. [2021-12-06 20:02:11,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 469 transitions, 5415 flow [2021-12-06 20:02:11,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 469 transitions, 5332 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-12-06 20:02:11,096 INFO L242 Difference]: Finished difference. Result has 278 places, 411 transitions, 4292 flow [2021-12-06 20:02:11,097 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=3827, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=4292, PETRI_PLACES=278, PETRI_TRANSITIONS=411} [2021-12-06 20:02:11,097 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 67 predicate places. [2021-12-06 20:02:11,098 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 411 transitions, 4292 flow [2021-12-06 20:02:11,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:11,098 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:11,098 INFO L254 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] [2021-12-06 20:02:11,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 20:02:11,099 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:11,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:11,099 INFO L85 PathProgramCache]: Analyzing trace with hash -292113333, now seen corresponding path program 4 times [2021-12-06 20:02:11,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:11,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536106245] [2021-12-06 20:02:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:11,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:11,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:11,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536106245] [2021-12-06 20:02:11,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536106245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:11,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:11,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:11,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972080188] [2021-12-06 20:02:11,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:11,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:11,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:11,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:11,154 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:11,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 411 transitions, 4292 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:11,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:11,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:11,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:12,747 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][238], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 67#L56-18true, 228#true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 347#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 345#true, Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:12,747 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-06 20:02:12,747 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:12,747 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:12,748 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:12,878 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][431], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), 88#L75-2true, 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 270#true, 67#L56-18true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 228#true, Black: 347#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 345#true, Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= 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302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:12,878 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:12,878 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:12,879 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:12,879 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:12,881 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][238], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= 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~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 270#true, 67#L56-18true, 228#true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 347#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 282#(or (= 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~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:12,881 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:12,881 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:02:12,882 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2021-12-06 20:02:12,882 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2021-12-06 20:02:12,882 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:12,900 INFO L129 PetriNetUnfolder]: 1683/13535 cut-off events. [2021-12-06 20:02:12,900 INFO L130 PetriNetUnfolder]: For 36907/37442 co-relation queries the response was YES. [2021-12-06 20:02:12,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30006 conditions, 13535 events. 1683/13535 cut-off events. For 36907/37442 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 183720 event pairs, 475 based on Foata normal form. 108/12921 useless extension candidates. Maximal degree in co-relation 25967. Up to 1432 conditions per place. [2021-12-06 20:02:13,023 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 221 selfloop transitions, 93 changer transitions 9/511 dead transitions. [2021-12-06 20:02:13,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 511 transitions, 6270 flow [2021-12-06 20:02:13,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:02:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:02:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1261 transitions. [2021-12-06 20:02:13,026 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9058908045977011 [2021-12-06 20:02:13,026 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1261 transitions. [2021-12-06 20:02:13,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1261 transitions. [2021-12-06 20:02:13,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:13,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1261 transitions. [2021-12-06 20:02:13,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.16666666666666) internal successors, (1261), 6 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:13,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:13,032 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:13,032 INFO L186 Difference]: Start difference. First operand has 278 places, 411 transitions, 4292 flow. Second operand 6 states and 1261 transitions. [2021-12-06 20:02:13,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 511 transitions, 6270 flow [2021-12-06 20:02:13,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 511 transitions, 6270 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 20:02:13,149 INFO L242 Difference]: Finished difference. Result has 288 places, 438 transitions, 5174 flow [2021-12-06 20:02:13,149 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=4292, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5174, PETRI_PLACES=288, PETRI_TRANSITIONS=438} [2021-12-06 20:02:13,150 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 77 predicate places. [2021-12-06 20:02:13,150 INFO L470 AbstractCegarLoop]: Abstraction has has 288 places, 438 transitions, 5174 flow [2021-12-06 20:02:13,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:13,150 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:13,150 INFO L254 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] [2021-12-06 20:02:13,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 20:02:13,151 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:13,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1764062793, now seen corresponding path program 7 times [2021-12-06 20:02:13,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:13,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152702490] [2021-12-06 20:02:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:13,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:13,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:13,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152702490] [2021-12-06 20:02:13,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152702490] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:13,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:13,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:13,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746638357] [2021-12-06 20:02:13,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:13,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:13,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:13,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:13,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:13,255 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:13,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 438 transitions, 5174 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:13,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:13,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:13,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:15,038 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][245], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= 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(div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 57#L74-4true, Black: 355#true, Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:15,038 INFO L384 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2021-12-06 20:02:15,038 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:15,038 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2021-12-06 20:02:15,038 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:15,066 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][245], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= 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256))))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 67#L56-18true, 228#true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 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(* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:15,066 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2021-12-06 20:02:15,066 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:15,066 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2021-12-06 20:02:15,067 INFO L387 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2021-12-06 20:02:15,067 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:15,067 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][481], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 107#L50-18true, Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 67#L56-18true, 228#true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 375#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 347#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 345#true, Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div 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~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 57#L74-4true, Black: 355#true, Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:15,067 INFO L384 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2021-12-06 20:02:15,067 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:15,067 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:15,067 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2021-12-06 20:02:15,275 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][245], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), 88#L75-2true, 107#L50-18true, Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 67#L56-18true, 228#true, 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 375#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 347#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 345#true, Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 361#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 357#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 355#true, Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 231#(= ~result_7~0 0)]) [2021-12-06 20:02:15,275 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-06 20:02:15,275 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:15,275 INFO L387 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2021-12-06 20:02:15,275 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:02:15,440 INFO L129 PetriNetUnfolder]: 1695/14053 cut-off events. [2021-12-06 20:02:15,440 INFO L130 PetriNetUnfolder]: For 43352/43842 co-relation queries the response was YES. [2021-12-06 20:02:15,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31862 conditions, 14053 events. 1695/14053 cut-off events. For 43352/43842 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 191393 event pairs, 354 based on Foata normal form. 121/13430 useless extension candidates. Maximal degree in co-relation 27601. Up to 1004 conditions per place. [2021-12-06 20:02:15,619 INFO L132 encePairwiseOnDemand]: 213/232 looper letters, 234 selfloop transitions, 141 changer transitions 5/568 dead transitions. [2021-12-06 20:02:15,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 568 transitions, 7778 flow [2021-12-06 20:02:15,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:02:15,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:02:15,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1463 transitions. [2021-12-06 20:02:15,623 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9008620689655172 [2021-12-06 20:02:15,623 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1463 transitions. [2021-12-06 20:02:15,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1463 transitions. [2021-12-06 20:02:15,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:15,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1463 transitions. [2021-12-06 20:02:15,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:15,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:15,629 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:15,629 INFO L186 Difference]: Start difference. First operand has 288 places, 438 transitions, 5174 flow. Second operand 7 states and 1463 transitions. [2021-12-06 20:02:15,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 568 transitions, 7778 flow [2021-12-06 20:02:15,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 568 transitions, 7712 flow, removed 33 selfloop flow, removed 0 redundant places. [2021-12-06 20:02:15,805 INFO L242 Difference]: Finished difference. Result has 298 places, 476 transitions, 6291 flow [2021-12-06 20:02:15,805 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=5053, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6291, PETRI_PLACES=298, PETRI_TRANSITIONS=476} [2021-12-06 20:02:15,806 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 87 predicate places. [2021-12-06 20:02:15,806 INFO L470 AbstractCegarLoop]: Abstraction has has 298 places, 476 transitions, 6291 flow [2021-12-06 20:02:15,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:15,806 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:15,806 INFO L254 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] [2021-12-06 20:02:15,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 20:02:15,806 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:15,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:15,807 INFO L85 PathProgramCache]: Analyzing trace with hash -369913761, now seen corresponding path program 5 times [2021-12-06 20:02:15,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:15,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158904903] [2021-12-06 20:02:15,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:15,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:15,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:15,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:15,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158904903] [2021-12-06 20:02:15,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158904903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:15,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:15,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:15,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376465273] [2021-12-06 20:02:15,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:15,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:15,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:15,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:15,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:15,895 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:15,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 476 transitions, 6291 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:15,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:15,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:15,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:17,506 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([581] L50-17-->L50-18: Formula: (= v_~result_7~0_1 |v_thread2Thread1of1ForFork1_#t~ite8#1_3|) InVars {thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_3|, ~result_7~0=v_~result_7~0_1} AuxVars[] AssignedVars[~result_7~0][492], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 146#L44true, 57#L74-4true, Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 107#L50-18true, 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 347#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 375#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 345#true, Black: 361#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 357#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 355#true, Black: 378#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 231#(= ~result_7~0 0), Black: 372#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:17,506 INFO L384 tUnfolder$Statistics]: this new event has 114 ancestors and is cut-off event [2021-12-06 20:02:17,506 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:02:17,506 INFO L387 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2021-12-06 20:02:17,506 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:02:17,525 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][242], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), 43#L44-8true, Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 306#(and (or (= 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20:02:17,533 INFO L387 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2021-12-06 20:02:17,576 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][242], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 260#true, Black: 262#(or (= 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~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 345#true, Black: 361#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 357#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 355#true, Black: 378#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 231#(= ~result_7~0 0), Black: 372#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:17,576 INFO L384 tUnfolder$Statistics]: this new event has 90 ancestors and is not cut-off event [2021-12-06 20:02:17,576 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is not cut-off event [2021-12-06 20:02:17,577 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is not cut-off event [2021-12-06 20:02:17,577 INFO L387 tUnfolder$Statistics]: existing Event has 114 ancestors and is not cut-off event [2021-12-06 20:02:17,828 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][242], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 359#(= ~sort_label_is_null_1~0 (* 256 (div 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(= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 345#true, Black: 361#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 357#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 355#true, Black: 378#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 372#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 231#(= ~result_7~0 0), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:17,828 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-06 20:02:17,828 INFO L387 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2021-12-06 20:02:17,828 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:02:17,828 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:17,990 INFO L129 PetriNetUnfolder]: 1733/14676 cut-off events. [2021-12-06 20:02:17,990 INFO L130 PetriNetUnfolder]: For 50792/51371 co-relation queries the response was YES. [2021-12-06 20:02:18,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34009 conditions, 14676 events. 1733/14676 cut-off events. For 50792/51371 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 200440 event pairs, 363 based on Foata normal form. 118/13995 useless extension candidates. Maximal degree in co-relation 29528. Up to 1442 conditions per place. [2021-12-06 20:02:18,115 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 297 selfloop transitions, 87 changer transitions 1/573 dead transitions. [2021-12-06 20:02:18,115 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 573 transitions, 8675 flow [2021-12-06 20:02:18,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:18,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1047 transitions. [2021-12-06 20:02:18,117 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9025862068965518 [2021-12-06 20:02:18,118 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1047 transitions. [2021-12-06 20:02:18,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1047 transitions. [2021-12-06 20:02:18,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:18,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1047 transitions. [2021-12-06 20:02:18,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.4) internal successors, (1047), 5 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:18,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:18,121 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:18,121 INFO L186 Difference]: Start difference. First operand has 298 places, 476 transitions, 6291 flow. Second operand 5 states and 1047 transitions. [2021-12-06 20:02:18,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 573 transitions, 8675 flow [2021-12-06 20:02:18,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 573 transitions, 8665 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-12-06 20:02:18,313 INFO L242 Difference]: Finished difference. Result has 306 places, 507 transitions, 7318 flow [2021-12-06 20:02:18,314 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=6283, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=7318, PETRI_PLACES=306, PETRI_TRANSITIONS=507} [2021-12-06 20:02:18,314 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 95 predicate places. [2021-12-06 20:02:18,314 INFO L470 AbstractCegarLoop]: Abstraction has has 306 places, 507 transitions, 7318 flow [2021-12-06 20:02:18,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:18,315 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:18,315 INFO L254 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] [2021-12-06 20:02:18,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 20:02:18,315 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:18,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:18,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1470380133, now seen corresponding path program 6 times [2021-12-06 20:02:18,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:18,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155594316] [2021-12-06 20:02:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:18,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:18,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:18,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:18,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155594316] [2021-12-06 20:02:18,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155594316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:18,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:18,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:18,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703933015] [2021-12-06 20:02:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:18,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:18,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:18,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:18,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:18,392 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:18,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 507 transitions, 7318 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:18,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:18,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:18,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:20,247 INFO L129 PetriNetUnfolder]: 1504/13361 cut-off events. [2021-12-06 20:02:20,248 INFO L130 PetriNetUnfolder]: For 55269/55808 co-relation queries the response was YES. [2021-12-06 20:02:20,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31485 conditions, 13361 events. 1504/13361 cut-off events. For 55269/55808 co-relation queries the response was YES. Maximal size of possible extension queue 553. Compared 179930 event pairs, 474 based on Foata normal form. 155/12823 useless extension candidates. Maximal degree in co-relation 28587. Up to 1517 conditions per place. [2021-12-06 20:02:20,403 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 313 selfloop transitions, 46 changer transitions 4/551 dead transitions. [2021-12-06 20:02:20,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 551 transitions, 8509 flow [2021-12-06 20:02:20,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1037 transitions. [2021-12-06 20:02:20,405 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8939655172413793 [2021-12-06 20:02:20,405 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1037 transitions. [2021-12-06 20:02:20,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1037 transitions. [2021-12-06 20:02:20,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:20,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1037 transitions. [2021-12-06 20:02:20,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.4) internal successors, (1037), 5 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:20,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:20,409 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:20,409 INFO L186 Difference]: Start difference. First operand has 306 places, 507 transitions, 7318 flow. Second operand 5 states and 1037 transitions. [2021-12-06 20:02:20,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 551 transitions, 8509 flow [2021-12-06 20:02:20,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 551 transitions, 8507 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-12-06 20:02:20,620 INFO L242 Difference]: Finished difference. Result has 313 places, 499 transitions, 7300 flow [2021-12-06 20:02:20,621 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=6870, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=7300, PETRI_PLACES=313, PETRI_TRANSITIONS=499} [2021-12-06 20:02:20,621 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 102 predicate places. [2021-12-06 20:02:20,621 INFO L470 AbstractCegarLoop]: Abstraction has has 313 places, 499 transitions, 7300 flow [2021-12-06 20:02:20,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:20,622 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:20,622 INFO L254 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] [2021-12-06 20:02:20,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 20:02:20,622 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:20,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:20,622 INFO L85 PathProgramCache]: Analyzing trace with hash -594819653, now seen corresponding path program 7 times [2021-12-06 20:02:20,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:20,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594198491] [2021-12-06 20:02:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:20,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:20,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594198491] [2021-12-06 20:02:20,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594198491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:20,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:20,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:20,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353966849] [2021-12-06 20:02:20,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:20,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:20,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:20,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:20,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:20,692 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:20,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 499 transitions, 7300 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:20,693 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:20,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:20,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:22,681 INFO L129 PetriNetUnfolder]: 1573/14215 cut-off events. [2021-12-06 20:02:22,681 INFO L130 PetriNetUnfolder]: For 55263/55868 co-relation queries the response was YES. [2021-12-06 20:02:22,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33348 conditions, 14215 events. 1573/14215 cut-off events. For 55263/55868 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 194090 event pairs, 462 based on Foata normal form. 108/13589 useless extension candidates. Maximal degree in co-relation 31221. Up to 1516 conditions per place. [2021-12-06 20:02:22,811 INFO L132 encePairwiseOnDemand]: 220/232 looper letters, 314 selfloop transitions, 58 changer transitions 5/565 dead transitions. [2021-12-06 20:02:22,811 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 565 transitions, 8975 flow [2021-12-06 20:02:22,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:22,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1038 transitions. [2021-12-06 20:02:22,814 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8948275862068965 [2021-12-06 20:02:22,814 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1038 transitions. [2021-12-06 20:02:22,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1038 transitions. [2021-12-06 20:02:22,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:22,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1038 transitions. [2021-12-06 20:02:22,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.6) internal successors, (1038), 5 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:22,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:22,817 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:22,817 INFO L186 Difference]: Start difference. First operand has 313 places, 499 transitions, 7300 flow. Second operand 5 states and 1038 transitions. [2021-12-06 20:02:22,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 565 transitions, 8975 flow [2021-12-06 20:02:23,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 565 transitions, 8956 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-12-06 20:02:23,033 INFO L242 Difference]: Finished difference. Result has 318 places, 509 transitions, 7662 flow [2021-12-06 20:02:23,034 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=7256, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=7662, PETRI_PLACES=318, PETRI_TRANSITIONS=509} [2021-12-06 20:02:23,034 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 107 predicate places. [2021-12-06 20:02:23,035 INFO L470 AbstractCegarLoop]: Abstraction has has 318 places, 509 transitions, 7662 flow [2021-12-06 20:02:23,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:23,035 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:23,035 INFO L254 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] [2021-12-06 20:02:23,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 20:02:23,035 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:23,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:23,035 INFO L85 PathProgramCache]: Analyzing trace with hash 532617759, now seen corresponding path program 8 times [2021-12-06 20:02:23,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:23,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195449376] [2021-12-06 20:02:23,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:23,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:23,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:23,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195449376] [2021-12-06 20:02:23,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195449376] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:23,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:23,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:23,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354390010] [2021-12-06 20:02:23,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:23,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:23,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:23,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:23,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:23,093 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:23,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 509 transitions, 7662 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:23,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:23,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:23,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:24,912 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][218], [408#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 387#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 384#true, Black: 386#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 397#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 400#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, Black: 409#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 410#(and (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div 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(div ~sort_label_is_null_3~0 256))))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 357#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 355#true, 396#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 378#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 372#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 231#(= ~result_7~0 0), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:24,913 INFO L384 tUnfolder$Statistics]: this new event has 104 ancestors and is not cut-off event [2021-12-06 20:02:24,913 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is not cut-off event [2021-12-06 20:02:24,913 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is not cut-off event [2021-12-06 20:02:24,913 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is not cut-off event [2021-12-06 20:02:25,084 INFO L129 PetriNetUnfolder]: 1562/13945 cut-off events. [2021-12-06 20:02:25,084 INFO L130 PetriNetUnfolder]: For 58584/59198 co-relation queries the response was YES. [2021-12-06 20:02:25,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33195 conditions, 13945 events. 1562/13945 cut-off events. For 58584/59198 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 188926 event pairs, 463 based on Foata normal form. 123/13318 useless extension candidates. Maximal degree in co-relation 31066. Up to 1247 conditions per place. [2021-12-06 20:02:25,260 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 275 selfloop transitions, 95 changer transitions 3/561 dead transitions. [2021-12-06 20:02:25,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 561 transitions, 9119 flow [2021-12-06 20:02:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1038 transitions. [2021-12-06 20:02:25,263 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8948275862068965 [2021-12-06 20:02:25,263 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1038 transitions. [2021-12-06 20:02:25,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1038 transitions. [2021-12-06 20:02:25,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:25,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1038 transitions. [2021-12-06 20:02:25,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.6) internal successors, (1038), 5 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:25,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:25,267 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:25,267 INFO L186 Difference]: Start difference. First operand has 318 places, 509 transitions, 7662 flow. Second operand 5 states and 1038 transitions. [2021-12-06 20:02:25,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 561 transitions, 9119 flow [2021-12-06 20:02:25,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 561 transitions, 9045 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-12-06 20:02:25,512 INFO L242 Difference]: Finished difference. Result has 323 places, 514 transitions, 8064 flow [2021-12-06 20:02:25,512 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=7531, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=8064, PETRI_PLACES=323, PETRI_TRANSITIONS=514} [2021-12-06 20:02:25,512 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 112 predicate places. [2021-12-06 20:02:25,512 INFO L470 AbstractCegarLoop]: Abstraction has has 323 places, 514 transitions, 8064 flow [2021-12-06 20:02:25,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:25,513 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:25,513 INFO L254 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] [2021-12-06 20:02:25,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 20:02:25,513 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:25,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:25,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1111779397, now seen corresponding path program 9 times [2021-12-06 20:02:25,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:25,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361570133] [2021-12-06 20:02:25,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:25,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:25,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:25,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361570133] [2021-12-06 20:02:25,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361570133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:25,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:25,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:25,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776485204] [2021-12-06 20:02:25,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:25,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:25,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:25,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:25,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:25,574 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:25,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 514 transitions, 8064 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:25,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:25,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:25,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:27,554 INFO L129 PetriNetUnfolder]: 1569/13939 cut-off events. [2021-12-06 20:02:27,554 INFO L130 PetriNetUnfolder]: For 61754/62373 co-relation queries the response was YES. [2021-12-06 20:02:27,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33611 conditions, 13939 events. 1569/13939 cut-off events. For 61754/62373 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 189275 event pairs, 446 based on Foata normal form. 110/13314 useless extension candidates. Maximal degree in co-relation 31754. Up to 1475 conditions per place. [2021-12-06 20:02:27,700 INFO L132 encePairwiseOnDemand]: 220/232 looper letters, 278 selfloop transitions, 82 changer transitions 5/553 dead transitions. [2021-12-06 20:02:27,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 553 transitions, 9249 flow [2021-12-06 20:02:27,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:27,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1036 transitions. [2021-12-06 20:02:27,702 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8931034482758621 [2021-12-06 20:02:27,702 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1036 transitions. [2021-12-06 20:02:27,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1036 transitions. [2021-12-06 20:02:27,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:27,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1036 transitions. [2021-12-06 20:02:27,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.2) internal successors, (1036), 5 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:27,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:27,706 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:27,706 INFO L186 Difference]: Start difference. First operand has 323 places, 514 transitions, 8064 flow. Second operand 5 states and 1036 transitions. [2021-12-06 20:02:27,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 553 transitions, 9249 flow [2021-12-06 20:02:27,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 553 transitions, 9198 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-12-06 20:02:27,959 INFO L242 Difference]: Finished difference. Result has 327 places, 515 transitions, 8263 flow [2021-12-06 20:02:27,960 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=7965, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=8263, PETRI_PLACES=327, PETRI_TRANSITIONS=515} [2021-12-06 20:02:27,960 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 116 predicate places. [2021-12-06 20:02:27,960 INFO L470 AbstractCegarLoop]: Abstraction has has 327 places, 515 transitions, 8263 flow [2021-12-06 20:02:27,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:27,960 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:27,960 INFO L254 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] [2021-12-06 20:02:27,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 20:02:27,961 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:27,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:27,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1723124795, now seen corresponding path program 8 times [2021-12-06 20:02:27,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:27,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837751790] [2021-12-06 20:02:27,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:27,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:28,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837751790] [2021-12-06 20:02:28,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837751790] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:28,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:28,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:28,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442595465] [2021-12-06 20:02:28,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:28,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:28,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:28,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:28,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:28,029 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:28,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 515 transitions, 8263 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:28,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:28,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:28,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:29,640 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][245], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 387#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 384#true, Black: 386#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 397#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 400#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, Black: 409#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 410#(and (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 417#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 416#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 43#L44-8true, 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 107#L50-18true, 426#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 347#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 375#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 345#true, 433#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 361#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 357#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 355#true, 396#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 378#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 231#(= ~result_7~0 0), Black: 372#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:29,640 INFO L384 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2021-12-06 20:02:29,640 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:29,640 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:29,640 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:02:30,049 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][245], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 387#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 384#true, Black: 386#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 397#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 400#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, Black: 409#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 410#(and (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 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~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 88#L75-2true, 107#L50-18true, 426#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 347#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 375#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 345#true, 433#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 361#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 357#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 355#true, 396#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 378#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 231#(= ~result_7~0 0), Black: 372#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:30,049 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:30,050 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:30,050 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:30,050 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:30,083 INFO L129 PetriNetUnfolder]: 1556/13933 cut-off events. [2021-12-06 20:02:30,083 INFO L130 PetriNetUnfolder]: For 68486/69146 co-relation queries the response was YES. [2021-12-06 20:02:30,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33910 conditions, 13933 events. 1556/13933 cut-off events. For 68486/69146 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 191331 event pairs, 425 based on Foata normal form. 123/13363 useless extension candidates. Maximal degree in co-relation 31896. Up to 1234 conditions per place. [2021-12-06 20:02:30,273 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 306 selfloop transitions, 103 changer transitions 6/603 dead transitions. [2021-12-06 20:02:30,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 603 transitions, 10765 flow [2021-12-06 20:02:30,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:30,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2021-12-06 20:02:30,276 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9017241379310345 [2021-12-06 20:02:30,276 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2021-12-06 20:02:30,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2021-12-06 20:02:30,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:30,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2021-12-06 20:02:30,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:30,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:30,280 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:30,280 INFO L186 Difference]: Start difference. First operand has 327 places, 515 transitions, 8263 flow. Second operand 5 states and 1046 transitions. [2021-12-06 20:02:30,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 603 transitions, 10765 flow [2021-12-06 20:02:30,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 603 transitions, 10681 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 20:02:30,570 INFO L242 Difference]: Finished difference. Result has 333 places, 543 transitions, 9244 flow [2021-12-06 20:02:30,571 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=8182, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9244, PETRI_PLACES=333, PETRI_TRANSITIONS=543} [2021-12-06 20:02:30,571 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 122 predicate places. [2021-12-06 20:02:30,571 INFO L470 AbstractCegarLoop]: Abstraction has has 333 places, 543 transitions, 9244 flow [2021-12-06 20:02:30,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:30,571 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:30,571 INFO L254 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] [2021-12-06 20:02:30,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 20:02:30,572 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:30,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:30,572 INFO L85 PathProgramCache]: Analyzing trace with hash -396501829, now seen corresponding path program 9 times [2021-12-06 20:02:30,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:30,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163719239] [2021-12-06 20:02:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:30,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:30,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:30,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:30,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163719239] [2021-12-06 20:02:30,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163719239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:30,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:30,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:30,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512530628] [2021-12-06 20:02:30,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:30,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:30,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:30,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:30,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:30,636 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:30,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 543 transitions, 9244 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:30,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:30,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:30,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:32,270 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][227], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 387#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= 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~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 361#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 357#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 355#true, 396#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 378#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 231#(= ~result_7~0 0), Black: 372#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:32,687 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2021-12-06 20:02:32,688 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:32,688 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:32,688 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:02:32,716 INFO L129 PetriNetUnfolder]: 1545/14153 cut-off events. [2021-12-06 20:02:32,716 INFO L130 PetriNetUnfolder]: For 68944/69542 co-relation queries the response was YES. [2021-12-06 20:02:32,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34722 conditions, 14153 events. 1545/14153 cut-off events. For 68944/69542 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 192884 event pairs, 345 based on Foata normal form. 127/13569 useless extension candidates. Maximal degree in co-relation 32645. Up to 1084 conditions per place. [2021-12-06 20:02:32,883 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 293 selfloop transitions, 113 changer transitions 3/597 dead transitions. [2021-12-06 20:02:32,883 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 597 transitions, 11030 flow [2021-12-06 20:02:32,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:32,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:32,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1051 transitions. [2021-12-06 20:02:32,885 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9060344827586206 [2021-12-06 20:02:32,885 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1051 transitions. [2021-12-06 20:02:32,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1051 transitions. [2021-12-06 20:02:32,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:32,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1051 transitions. [2021-12-06 20:02:32,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.2) internal successors, (1051), 5 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:32,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:32,888 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:32,888 INFO L186 Difference]: Start difference. First operand has 333 places, 543 transitions, 9244 flow. Second operand 5 states and 1051 transitions. [2021-12-06 20:02:32,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 597 transitions, 11030 flow [2021-12-06 20:02:33,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 597 transitions, 11018 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-12-06 20:02:33,180 INFO L242 Difference]: Finished difference. Result has 338 places, 542 transitions, 9483 flow [2021-12-06 20:02:33,180 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9173, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9483, PETRI_PLACES=338, PETRI_TRANSITIONS=542} [2021-12-06 20:02:33,180 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 127 predicate places. [2021-12-06 20:02:33,181 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 542 transitions, 9483 flow [2021-12-06 20:02:33,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:33,181 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:33,181 INFO L254 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] [2021-12-06 20:02:33,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 20:02:33,181 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:33,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:33,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1367249787, now seen corresponding path program 10 times [2021-12-06 20:02:33,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:33,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859154784] [2021-12-06 20:02:33,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:33,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:33,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:33,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859154784] [2021-12-06 20:02:33,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859154784] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:33,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:33,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:33,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690100499] [2021-12-06 20:02:33,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:33,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:33,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:33,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:33,234 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:33,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 542 transitions, 9483 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:33,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:33,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:33,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:34,861 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][229], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 451#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 387#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 384#true, Black: 386#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 260#true, Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 397#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 400#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, Black: 409#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 417#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 416#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 43#L44-8true, 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 57#L74-4true, Black: 432#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 430#true, Black: 434#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 303#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 302#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 309#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 304#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 300#true, Black: 443#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 320#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 321#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 107#L50-18true, 426#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 348#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 329#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 263#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 327#true, Black: 331#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 340#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 444#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 330#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), 375#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 347#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 349#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 345#true, 433#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 361#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 357#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), Black: 358#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 355#true, 396#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 378#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 231#(= ~result_7~0 0), Black: 372#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:34,862 INFO L384 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2021-12-06 20:02:34,862 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:34,862 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:34,862 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2021-12-06 20:02:35,320 INFO L129 PetriNetUnfolder]: 1524/13904 cut-off events. [2021-12-06 20:02:35,321 INFO L130 PetriNetUnfolder]: For 74469/75060 co-relation queries the response was YES. [2021-12-06 20:02:35,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34708 conditions, 13904 events. 1524/13904 cut-off events. For 74469/75060 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 190380 event pairs, 437 based on Foata normal form. 121/13331 useless extension candidates. Maximal degree in co-relation 32610. Up to 1321 conditions per place. [2021-12-06 20:02:35,509 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 271 selfloop transitions, 131 changer transitions 1/591 dead transitions. [2021-12-06 20:02:35,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 591 transitions, 11080 flow [2021-12-06 20:02:35,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:02:35,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:02:35,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1250 transitions. [2021-12-06 20:02:35,511 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8979885057471264 [2021-12-06 20:02:35,511 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1250 transitions. [2021-12-06 20:02:35,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1250 transitions. [2021-12-06 20:02:35,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:35,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1250 transitions. [2021-12-06 20:02:35,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.33333333333334) internal successors, (1250), 6 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:35,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:35,514 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:35,514 INFO L186 Difference]: Start difference. First operand has 338 places, 542 transitions, 9483 flow. Second operand 6 states and 1250 transitions. [2021-12-06 20:02:35,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 591 transitions, 11080 flow [2021-12-06 20:02:35,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 591 transitions, 10891 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-12-06 20:02:35,826 INFO L242 Difference]: Finished difference. Result has 341 places, 542 transitions, 9632 flow [2021-12-06 20:02:35,827 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9276, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9632, PETRI_PLACES=341, PETRI_TRANSITIONS=542} [2021-12-06 20:02:35,827 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 130 predicate places. [2021-12-06 20:02:35,827 INFO L470 AbstractCegarLoop]: Abstraction has has 341 places, 542 transitions, 9632 flow [2021-12-06 20:02:35,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:35,828 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:35,828 INFO L254 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] [2021-12-06 20:02:35,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 20:02:35,828 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:35,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:35,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1670482027, now seen corresponding path program 11 times [2021-12-06 20:02:35,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:35,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578522295] [2021-12-06 20:02:35,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:35,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:35,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:35,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578522295] [2021-12-06 20:02:35,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578522295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:35,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:35,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:35,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014587577] [2021-12-06 20:02:35,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:35,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:35,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:35,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:35,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:35,886 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:35,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 542 transitions, 9632 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:35,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:35,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:35,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:37,909 INFO L129 PetriNetUnfolder]: 1487/13321 cut-off events. [2021-12-06 20:02:37,909 INFO L130 PetriNetUnfolder]: For 72380/72957 co-relation queries the response was YES. [2021-12-06 20:02:38,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33647 conditions, 13321 events. 1487/13321 cut-off events. For 72380/72957 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 179183 event pairs, 331 based on Foata normal form. 125/12756 useless extension candidates. Maximal degree in co-relation 32032. Up to 1359 conditions per place. [2021-12-06 20:02:38,085 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 337 selfloop transitions, 68 changer transitions 2/595 dead transitions. [2021-12-06 20:02:38,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 595 transitions, 11374 flow [2021-12-06 20:02:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1042 transitions. [2021-12-06 20:02:38,087 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8982758620689655 [2021-12-06 20:02:38,087 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1042 transitions. [2021-12-06 20:02:38,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1042 transitions. [2021-12-06 20:02:38,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:38,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1042 transitions. [2021-12-06 20:02:38,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.4) internal successors, (1042), 5 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:38,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:38,090 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:38,090 INFO L186 Difference]: Start difference. First operand has 341 places, 542 transitions, 9632 flow. Second operand 5 states and 1042 transitions. [2021-12-06 20:02:38,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 595 transitions, 11374 flow [2021-12-06 20:02:38,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 595 transitions, 11208 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-12-06 20:02:38,389 INFO L242 Difference]: Finished difference. Result has 345 places, 547 transitions, 9809 flow [2021-12-06 20:02:38,390 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9325, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9809, PETRI_PLACES=345, PETRI_TRANSITIONS=547} [2021-12-06 20:02:38,390 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 134 predicate places. [2021-12-06 20:02:38,390 INFO L470 AbstractCegarLoop]: Abstraction has has 345 places, 547 transitions, 9809 flow [2021-12-06 20:02:38,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:38,391 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:38,391 INFO L254 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] [2021-12-06 20:02:38,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 20:02:38,391 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:38,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:38,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2064948297, now seen corresponding path program 12 times [2021-12-06 20:02:38,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:38,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455628602] [2021-12-06 20:02:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:38,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:38,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:38,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455628602] [2021-12-06 20:02:38,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455628602] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:38,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:38,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:38,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514802908] [2021-12-06 20:02:38,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:38,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:38,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:38,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:38,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:38,444 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:38,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 547 transitions, 9809 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:38,445 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:38,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:38,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:40,538 INFO L129 PetriNetUnfolder]: 1522/13405 cut-off events. [2021-12-06 20:02:40,538 INFO L130 PetriNetUnfolder]: For 76905/77522 co-relation queries the response was YES. [2021-12-06 20:02:40,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34275 conditions, 13405 events. 1522/13405 cut-off events. For 76905/77522 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 182617 event pairs, 417 based on Foata normal form. 106/12832 useless extension candidates. Maximal degree in co-relation 32448. Up to 1359 conditions per place. [2021-12-06 20:02:40,726 INFO L132 encePairwiseOnDemand]: 220/232 looper letters, 336 selfloop transitions, 75 changer transitions 2/601 dead transitions. [2021-12-06 20:02:40,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 601 transitions, 11547 flow [2021-12-06 20:02:40,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:02:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:02:40,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1041 transitions. [2021-12-06 20:02:40,728 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8974137931034483 [2021-12-06 20:02:40,728 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1041 transitions. [2021-12-06 20:02:40,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1041 transitions. [2021-12-06 20:02:40,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:40,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1041 transitions. [2021-12-06 20:02:40,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.2) internal successors, (1041), 5 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:40,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:40,731 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:40,731 INFO L186 Difference]: Start difference. First operand has 345 places, 547 transitions, 9809 flow. Second operand 5 states and 1041 transitions. [2021-12-06 20:02:40,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 601 transitions, 11547 flow [2021-12-06 20:02:41,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 601 transitions, 11507 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-12-06 20:02:41,086 INFO L242 Difference]: Finished difference. Result has 349 places, 552 transitions, 10059 flow [2021-12-06 20:02:41,086 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9660, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=10059, PETRI_PLACES=349, PETRI_TRANSITIONS=552} [2021-12-06 20:02:41,086 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 138 predicate places. [2021-12-06 20:02:41,087 INFO L470 AbstractCegarLoop]: Abstraction has has 349 places, 552 transitions, 10059 flow [2021-12-06 20:02:41,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:41,087 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:41,087 INFO L254 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] [2021-12-06 20:02:41,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 20:02:41,087 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:41,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:41,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1113626751, now seen corresponding path program 10 times [2021-12-06 20:02:41,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:41,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240172311] [2021-12-06 20:02:41,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:41,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:41,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:41,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240172311] [2021-12-06 20:02:41,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240172311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:41,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:41,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:41,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662263229] [2021-12-06 20:02:41,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:41,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:41,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:41,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:41,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:41,135 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:41,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 552 transitions, 10059 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:41,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:41,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:41,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:43,260 INFO L129 PetriNetUnfolder]: 1515/13796 cut-off events. [2021-12-06 20:02:43,260 INFO L130 PetriNetUnfolder]: For 77292/77864 co-relation queries the response was YES. [2021-12-06 20:02:43,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34931 conditions, 13796 events. 1515/13796 cut-off events. For 77292/77864 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 187487 event pairs, 334 based on Foata normal form. 110/13199 useless extension candidates. Maximal degree in co-relation 33133. Up to 937 conditions per place. [2021-12-06 20:02:43,457 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 276 selfloop transitions, 165 changer transitions 1/630 dead transitions. [2021-12-06 20:02:43,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 630 transitions, 12308 flow [2021-12-06 20:02:43,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:02:43,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:02:43,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1455 transitions. [2021-12-06 20:02:43,460 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.895935960591133 [2021-12-06 20:02:43,460 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1455 transitions. [2021-12-06 20:02:43,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1455 transitions. [2021-12-06 20:02:43,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:43,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1455 transitions. [2021-12-06 20:02:43,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 207.85714285714286) internal successors, (1455), 7 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:43,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:43,463 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:43,463 INFO L186 Difference]: Start difference. First operand has 349 places, 552 transitions, 10059 flow. Second operand 7 states and 1455 transitions. [2021-12-06 20:02:43,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 630 transitions, 12308 flow [2021-12-06 20:02:43,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 630 transitions, 12188 flow, removed 9 selfloop flow, removed 2 redundant places. [2021-12-06 20:02:43,830 INFO L242 Difference]: Finished difference. Result has 358 places, 582 transitions, 11310 flow [2021-12-06 20:02:43,830 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9953, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11310, PETRI_PLACES=358, PETRI_TRANSITIONS=582} [2021-12-06 20:02:43,831 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 147 predicate places. [2021-12-06 20:02:43,831 INFO L470 AbstractCegarLoop]: Abstraction has has 358 places, 582 transitions, 11310 flow [2021-12-06 20:02:43,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:43,831 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:43,831 INFO L254 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] [2021-12-06 20:02:43,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 20:02:43,831 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:43,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:43,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1338848409, now seen corresponding path program 11 times [2021-12-06 20:02:43,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:43,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965120136] [2021-12-06 20:02:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:43,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:43,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:43,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:43,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965120136] [2021-12-06 20:02:43,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965120136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:43,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:43,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:43,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802133727] [2021-12-06 20:02:43,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:43,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:43,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:43,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:43,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:43,883 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:43,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 582 transitions, 11310 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:43,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:43,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:43,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:46,192 INFO L129 PetriNetUnfolder]: 1528/13975 cut-off events. [2021-12-06 20:02:46,192 INFO L130 PetriNetUnfolder]: For 84186/84781 co-relation queries the response was YES. [2021-12-06 20:02:46,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35959 conditions, 13975 events. 1528/13975 cut-off events. For 84186/84781 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 190040 event pairs, 414 based on Foata normal form. 113/13362 useless extension candidates. Maximal degree in co-relation 34128. Up to 1045 conditions per place. [2021-12-06 20:02:46,333 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 314 selfloop transitions, 117 changer transitions 2/621 dead transitions. [2021-12-06 20:02:46,334 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 621 transitions, 12659 flow [2021-12-06 20:02:46,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:02:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:02:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1245 transitions. [2021-12-06 20:02:46,335 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8943965517241379 [2021-12-06 20:02:46,336 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1245 transitions. [2021-12-06 20:02:46,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1245 transitions. [2021-12-06 20:02:46,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:46,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1245 transitions. [2021-12-06 20:02:46,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:46,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:46,338 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:46,338 INFO L186 Difference]: Start difference. First operand has 358 places, 582 transitions, 11310 flow. Second operand 6 states and 1245 transitions. [2021-12-06 20:02:46,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 621 transitions, 12659 flow [2021-12-06 20:02:46,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 621 transitions, 12551 flow, removed 54 selfloop flow, removed 0 redundant places. [2021-12-06 20:02:46,735 INFO L242 Difference]: Finished difference. Result has 364 places, 583 transitions, 11532 flow [2021-12-06 20:02:46,736 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=11171, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=11532, PETRI_PLACES=364, PETRI_TRANSITIONS=583} [2021-12-06 20:02:46,736 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 153 predicate places. [2021-12-06 20:02:46,736 INFO L470 AbstractCegarLoop]: Abstraction has has 364 places, 583 transitions, 11532 flow [2021-12-06 20:02:46,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:46,736 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:46,737 INFO L254 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] [2021-12-06 20:02:46,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 20:02:46,737 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:46,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:46,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1705813857, now seen corresponding path program 12 times [2021-12-06 20:02:46,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:46,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502224133] [2021-12-06 20:02:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:46,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:46,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:46,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502224133] [2021-12-06 20:02:46,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502224133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:46,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:46,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:46,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691907613] [2021-12-06 20:02:46,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:46,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:46,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:46,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:46,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:46,778 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:46,779 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 583 transitions, 11532 flow. Second operand has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:46,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:46,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:46,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:49,086 INFO L129 PetriNetUnfolder]: 1510/13842 cut-off events. [2021-12-06 20:02:49,086 INFO L130 PetriNetUnfolder]: For 86397/86967 co-relation queries the response was YES. [2021-12-06 20:02:49,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35798 conditions, 13842 events. 1510/13842 cut-off events. For 86397/86967 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 187999 event pairs, 355 based on Foata normal form. 109/13221 useless extension candidates. Maximal degree in co-relation 33951. Up to 941 conditions per place. [2021-12-06 20:02:49,290 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 291 selfloop transitions, 142 changer transitions 0/621 dead transitions. [2021-12-06 20:02:49,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 621 transitions, 12816 flow [2021-12-06 20:02:49,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:02:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:02:49,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1449 transitions. [2021-12-06 20:02:49,292 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8922413793103449 [2021-12-06 20:02:49,292 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1449 transitions. [2021-12-06 20:02:49,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1449 transitions. [2021-12-06 20:02:49,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:49,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1449 transitions. [2021-12-06 20:02:49,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:49,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:49,295 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:49,296 INFO L186 Difference]: Start difference. First operand has 364 places, 583 transitions, 11532 flow. Second operand 7 states and 1449 transitions. [2021-12-06 20:02:49,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 621 transitions, 12816 flow [2021-12-06 20:02:49,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 621 transitions, 12733 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 20:02:49,761 INFO L242 Difference]: Finished difference. Result has 368 places, 582 transitions, 11700 flow [2021-12-06 20:02:49,761 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=11416, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11700, PETRI_PLACES=368, PETRI_TRANSITIONS=582} [2021-12-06 20:02:49,762 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 157 predicate places. [2021-12-06 20:02:49,762 INFO L470 AbstractCegarLoop]: Abstraction has has 368 places, 582 transitions, 11700 flow [2021-12-06 20:02:49,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.2) internal successors, (981), 5 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:49,762 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:49,762 INFO L254 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] [2021-12-06 20:02:49,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 20:02:49,762 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:49,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:49,762 INFO L85 PathProgramCache]: Analyzing trace with hash 799570023, now seen corresponding path program 1 times [2021-12-06 20:02:49,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:49,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227585254] [2021-12-06 20:02:49,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:49,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:49,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:49,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227585254] [2021-12-06 20:02:49,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227585254] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:49,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:49,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:02:49,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565075505] [2021-12-06 20:02:49,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:49,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:02:49,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:49,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:02:49,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:02:49,806 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 232 [2021-12-06 20:02:49,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 582 transitions, 11700 flow. Second operand has 7 states, 7 states have (on average 201.85714285714286) internal successors, (1413), 7 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:49,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:49,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 232 [2021-12-06 20:02:49,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:51,146 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][271], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), 359#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))), Black: 387#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 384#true, Black: 386#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))), Black: 260#true, 284#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 262#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 459#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 264#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))))), 273#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 397#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 274#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 400#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 272#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 270#true, 67#L56-18true, Black: 409#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), 228#true, Black: 282#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))), Black: 283#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), Black: 286#(and (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 417#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 416#(or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 510#(and (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 295#(or (and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), 43#L44-8true, 306#(and (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div 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ancestors and is cut-off event [2021-12-06 20:02:51,147 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:51,147 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2021-12-06 20:02:51,634 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][271], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 237#(and (= ~result_8~0 0) (= 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~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:51,634 INFO L384 tUnfolder$Statistics]: this new event has 140 ancestors and is cut-off event [2021-12-06 20:02:51,634 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2021-12-06 20:02:51,634 INFO L387 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2021-12-06 20:02:51,634 INFO L387 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2021-12-06 20:02:51,639 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][271], [Black: 233#(and (= 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tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2021-12-06 20:02:51,651 INFO L387 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2021-12-06 20:02:51,651 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2021-12-06 20:02:51,655 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L56-17-->L56-18: Formula: (= v_~result_8~0_1 |v_thread3Thread1of1ForFork2_#t~ite12#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite12#1=|v_thread3Thread1of1ForFork2_#t~ite12#1_3|, ~result_8~0=v_~result_8~0_1} AuxVars[] AssignedVars[~result_8~0][271], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 322#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), Black: 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~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:02:51,655 INFO L384 tUnfolder$Statistics]: this new event has 144 ancestors and is cut-off event [2021-12-06 20:02:51,655 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2021-12-06 20:02:51,655 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2021-12-06 20:02:51,655 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2021-12-06 20:02:51,762 INFO L129 PetriNetUnfolder]: 974/10752 cut-off events. [2021-12-06 20:02:51,762 INFO L130 PetriNetUnfolder]: For 62046/75124 co-relation queries the response was YES. [2021-12-06 20:02:51,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26055 conditions, 10752 events. 974/10752 cut-off events. For 62046/75124 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 143810 event pairs, 235 based on Foata normal form. 176/10420 useless extension candidates. Maximal degree in co-relation 24956. Up to 993 conditions per place. [2021-12-06 20:02:51,892 INFO L132 encePairwiseOnDemand]: 224/232 looper letters, 22 selfloop transitions, 5 changer transitions 81/602 dead transitions. [2021-12-06 20:02:51,893 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 602 transitions, 11837 flow [2021-12-06 20:02:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:02:51,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 20:02:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1834 transitions. [2021-12-06 20:02:51,895 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8783524904214559 [2021-12-06 20:02:51,895 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1834 transitions. [2021-12-06 20:02:51,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1834 transitions. [2021-12-06 20:02:51,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:51,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1834 transitions. [2021-12-06 20:02:51,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.77777777777777) internal successors, (1834), 9 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:51,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 232.0) internal successors, (2320), 10 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:51,899 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 232.0) internal successors, (2320), 10 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:51,899 INFO L186 Difference]: Start difference. First operand has 368 places, 582 transitions, 11700 flow. Second operand 9 states and 1834 transitions. [2021-12-06 20:02:51,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 602 transitions, 11837 flow [2021-12-06 20:02:52,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 602 transitions, 11577 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-12-06 20:02:52,149 INFO L242 Difference]: Finished difference. Result has 379 places, 520 transitions, 9639 flow [2021-12-06 20:02:52,150 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=11440, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9639, PETRI_PLACES=379, PETRI_TRANSITIONS=520} [2021-12-06 20:02:52,150 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 168 predicate places. [2021-12-06 20:02:52,150 INFO L470 AbstractCegarLoop]: Abstraction has has 379 places, 520 transitions, 9639 flow [2021-12-06 20:02:52,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 201.85714285714286) internal successors, (1413), 7 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:52,151 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:52,151 INFO L254 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] [2021-12-06 20:02:52,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 20:02:52,151 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:52,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash -327859000, now seen corresponding path program 1 times [2021-12-06 20:02:52,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:52,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235358265] [2021-12-06 20:02:52,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:52,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:52,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:52,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:52,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235358265] [2021-12-06 20:02:52,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235358265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:52,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:52,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:52,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592263282] [2021-12-06 20:02:52,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:52,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:52,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:52,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:52,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:52,231 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:52,231 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 520 transitions, 9639 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:52,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:52,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:52,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:54,461 INFO L129 PetriNetUnfolder]: 1289/12674 cut-off events. [2021-12-06 20:02:54,462 INFO L130 PetriNetUnfolder]: For 74808/75322 co-relation queries the response was YES. [2021-12-06 20:02:54,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32130 conditions, 12674 events. 1289/12674 cut-off events. For 74808/75322 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 171152 event pairs, 258 based on Foata normal form. 129/12180 useless extension candidates. Maximal degree in co-relation 31903. Up to 827 conditions per place. [2021-12-06 20:02:54,663 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 328 selfloop transitions, 121 changer transitions 3/644 dead transitions. [2021-12-06 20:02:54,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 644 transitions, 12819 flow [2021-12-06 20:02:54,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:02:54,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:02:54,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1477 transitions. [2021-12-06 20:02:54,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9094827586206896 [2021-12-06 20:02:54,666 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1477 transitions. [2021-12-06 20:02:54,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1477 transitions. [2021-12-06 20:02:54,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:54,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1477 transitions. [2021-12-06 20:02:54,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:54,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:54,671 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:54,671 INFO L186 Difference]: Start difference. First operand has 379 places, 520 transitions, 9639 flow. Second operand 7 states and 1477 transitions. [2021-12-06 20:02:54,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 644 transitions, 12819 flow [2021-12-06 20:02:55,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 644 transitions, 12601 flow, removed 35 selfloop flow, removed 7 redundant places. [2021-12-06 20:02:55,100 INFO L242 Difference]: Finished difference. Result has 381 places, 560 transitions, 10800 flow [2021-12-06 20:02:55,101 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9426, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10800, PETRI_PLACES=381, PETRI_TRANSITIONS=560} [2021-12-06 20:02:55,101 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 170 predicate places. [2021-12-06 20:02:55,101 INFO L470 AbstractCegarLoop]: Abstraction has has 381 places, 560 transitions, 10800 flow [2021-12-06 20:02:55,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:55,101 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:55,102 INFO L254 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] [2021-12-06 20:02:55,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 20:02:55,102 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:55,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:55,102 INFO L85 PathProgramCache]: Analyzing trace with hash 420860532, now seen corresponding path program 1 times [2021-12-06 20:02:55,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:55,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212818440] [2021-12-06 20:02:55,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:55,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:55,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:55,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212818440] [2021-12-06 20:02:55,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212818440] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:55,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:55,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:55,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382759866] [2021-12-06 20:02:55,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:55,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:55,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:55,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:55,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:55,162 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:55,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 560 transitions, 10800 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:55,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:55,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:55,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:02:57,770 INFO L129 PetriNetUnfolder]: 1457/15186 cut-off events. [2021-12-06 20:02:57,771 INFO L130 PetriNetUnfolder]: For 86493/87068 co-relation queries the response was YES. [2021-12-06 20:02:57,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37580 conditions, 15186 events. 1457/15186 cut-off events. For 86493/87068 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 208843 event pairs, 360 based on Foata normal form. 148/14531 useless extension candidates. Maximal degree in co-relation 36312. Up to 949 conditions per place. [2021-12-06 20:02:58,019 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 330 selfloop transitions, 125 changer transitions 2/649 dead transitions. [2021-12-06 20:02:58,019 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 649 transitions, 13185 flow [2021-12-06 20:02:58,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:02:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:02:58,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1468 transitions. [2021-12-06 20:02:58,021 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9039408866995073 [2021-12-06 20:02:58,021 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1468 transitions. [2021-12-06 20:02:58,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1468 transitions. [2021-12-06 20:02:58,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:02:58,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1468 transitions. [2021-12-06 20:02:58,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 209.71428571428572) internal successors, (1468), 7 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:58,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:58,024 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:58,024 INFO L186 Difference]: Start difference. First operand has 381 places, 560 transitions, 10800 flow. Second operand 7 states and 1468 transitions. [2021-12-06 20:02:58,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 649 transitions, 13185 flow [2021-12-06 20:02:58,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 649 transitions, 13054 flow, removed 50 selfloop flow, removed 1 redundant places. [2021-12-06 20:02:58,479 INFO L242 Difference]: Finished difference. Result has 391 places, 578 transitions, 11655 flow [2021-12-06 20:02:58,479 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=10628, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11655, PETRI_PLACES=391, PETRI_TRANSITIONS=578} [2021-12-06 20:02:58,480 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 180 predicate places. [2021-12-06 20:02:58,480 INFO L470 AbstractCegarLoop]: Abstraction has has 391 places, 578 transitions, 11655 flow [2021-12-06 20:02:58,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:58,480 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:02:58,480 INFO L254 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] [2021-12-06 20:02:58,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 20:02:58,480 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:02:58,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:02:58,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1183836752, now seen corresponding path program 2 times [2021-12-06 20:02:58,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:02:58,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412967184] [2021-12-06 20:02:58,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:02:58,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:02:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:02:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:02:58,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:02:58,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412967184] [2021-12-06 20:02:58,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412967184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:02:58,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:02:58,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:02:58,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402872492] [2021-12-06 20:02:58,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:02:58,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:02:58,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:02:58,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:02:58,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:02:58,522 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:02:58,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 578 transitions, 11655 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:58,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:02:58,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:02:58,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:03:01,127 INFO L129 PetriNetUnfolder]: 1434/14475 cut-off events. [2021-12-06 20:03:01,127 INFO L130 PetriNetUnfolder]: For 94844/95407 co-relation queries the response was YES. [2021-12-06 20:03:01,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37610 conditions, 14475 events. 1434/14475 cut-off events. For 94844/95407 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 201712 event pairs, 341 based on Foata normal form. 105/13872 useless extension candidates. Maximal degree in co-relation 36468. Up to 902 conditions per place. [2021-12-06 20:03:01,305 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 328 selfloop transitions, 121 changer transitions 1/642 dead transitions. [2021-12-06 20:03:01,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 642 transitions, 13575 flow [2021-12-06 20:03:01,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:03:01,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:03:01,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1451 transitions. [2021-12-06 20:03:01,306 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8934729064039408 [2021-12-06 20:03:01,307 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1451 transitions. [2021-12-06 20:03:01,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1451 transitions. [2021-12-06 20:03:01,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:03:01,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1451 transitions. [2021-12-06 20:03:01,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 207.28571428571428) internal successors, (1451), 7 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:03:01,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:03:01,310 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:03:01,310 INFO L186 Difference]: Start difference. First operand has 391 places, 578 transitions, 11655 flow. Second operand 7 states and 1451 transitions. [2021-12-06 20:03:01,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 642 transitions, 13575 flow [2021-12-06 20:03:01,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 642 transitions, 13535 flow, removed 20 selfloop flow, removed 0 redundant places. [2021-12-06 20:03:01,801 INFO L242 Difference]: Finished difference. Result has 399 places, 582 transitions, 12080 flow [2021-12-06 20:03:01,802 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=11617, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12080, PETRI_PLACES=399, PETRI_TRANSITIONS=582} [2021-12-06 20:03:01,803 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 188 predicate places. [2021-12-06 20:03:01,803 INFO L470 AbstractCegarLoop]: Abstraction has has 399 places, 582 transitions, 12080 flow [2021-12-06 20:03:01,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:03:01,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:03:01,803 INFO L254 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] [2021-12-06 20:03:01,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 20:03:01,804 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:03:01,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:03:01,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1801782379, now seen corresponding path program 1 times [2021-12-06 20:03:01,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:03:01,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206072700] [2021-12-06 20:03:01,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:03:01,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:03:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:03:01,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:03:01,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:03:01,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206072700] [2021-12-06 20:03:01,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206072700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:03:01,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:03:01,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 20:03:01,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514126888] [2021-12-06 20:03:01,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:03:01,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:03:01,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:03:01,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:03:01,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:03:01,872 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 232 [2021-12-06 20:03:01,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 582 transitions, 12080 flow. Second operand has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:03:01,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:03:01,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 232 [2021-12-06 20:03:01,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:03:08,414 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] AssignedVars[][342], [Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 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388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:03:08,415 INFO L384 tUnfolder$Statistics]: this new event has 150 ancestors and is cut-off event [2021-12-06 20:03:08,415 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:03:08,415 INFO L387 tUnfolder$Statistics]: existing Event has 150 ancestors and is cut-off event [2021-12-06 20:03:08,415 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2021-12-06 20:03:08,415 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, 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L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2021-12-06 20:03:08,415 INFO L387 tUnfolder$Statistics]: existing Event has 148 ancestors and is cut-off event [2021-12-06 20:03:08,415 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, 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this new event has 154 ancestors and is cut-off event [2021-12-06 20:03:08,427 INFO L387 tUnfolder$Statistics]: existing Event has 106 ancestors and is cut-off event [2021-12-06 20:03:08,427 INFO L387 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2021-12-06 20:03:08,427 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2021-12-06 20:03:08,427 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} 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ancestors and is cut-off event [2021-12-06 20:03:08,427 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2021-12-06 20:03:08,428 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] 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20:03:08,429 INFO L384 tUnfolder$Statistics]: this new event has 150 ancestors and is cut-off event [2021-12-06 20:03:08,429 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:03:08,429 INFO L387 tUnfolder$Statistics]: existing Event has 150 ancestors and is cut-off event [2021-12-06 20:03:08,429 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2021-12-06 20:03:08,429 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, 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[2021-12-06 20:03:08,429 INFO L387 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2021-12-06 20:03:08,429 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2021-12-06 20:03:08,429 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, 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~sort_label_is_null_3~0 256)))) (or (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 372#(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 231#(= ~result_7~0 0), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:03:08,429 INFO L384 tUnfolder$Statistics]: this new event has 151 ancestors and is cut-off event [2021-12-06 20:03:08,429 INFO L387 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2021-12-06 20:03:08,429 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2021-12-06 20:03:08,430 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2021-12-06 20:03:08,430 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] AssignedVars[][342], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 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~sort_label_is_null_1~0 256))) (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256)))), Black: 231#(= ~result_7~0 0), Black: 373#(= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:03:08,430 INFO L384 tUnfolder$Statistics]: this new event has 152 ancestors and is cut-off event [2021-12-06 20:03:08,430 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:03:08,430 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2021-12-06 20:03:08,430 INFO L387 tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2021-12-06 20:03:08,430 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 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~sort_label_is_null_1~0 256)))]) [2021-12-06 20:03:08,430 INFO L384 tUnfolder$Statistics]: this new event has 150 ancestors and is cut-off event [2021-12-06 20:03:08,430 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:03:08,430 INFO L387 tUnfolder$Statistics]: existing Event has 150 ancestors and is cut-off event [2021-12-06 20:03:08,430 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2021-12-06 20:03:08,431 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, 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tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2021-12-06 20:03:08,431 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2021-12-06 20:03:08,431 INFO L387 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2021-12-06 20:03:08,431 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, 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INFO L387 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2021-12-06 20:03:08,431 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] AssignedVars[][342], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 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[2021-12-06 20:06:38,711 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2021-12-06 20:06:38,748 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite11#1_7| |v_thread3Thread1of1ForFork2_#t~ite10#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][434], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 1657#true, Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 1488#(and (<= (+ 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tUnfolder$Statistics]: existing Event has 151 ancestors and is cut-off event [2021-12-06 20:06:38,749 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2021-12-06 20:06:38,749 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2021-12-06 20:06:38,784 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite11#1_7| |v_thread3Thread1of1ForFork2_#t~ite10#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][434], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= 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~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:06:38,784 INFO L384 tUnfolder$Statistics]: this new event has 152 ancestors and is cut-off event [2021-12-06 20:06:38,784 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2021-12-06 20:06:38,784 INFO L387 tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2021-12-06 20:06:38,784 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:06:38,939 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite11#1_7| |v_thread3Thread1of1ForFork2_#t~ite10#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, 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~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 231#(= ~result_7~0 0), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:06:38,940 INFO L384 tUnfolder$Statistics]: this new event has 159 ancestors and is cut-off event [2021-12-06 20:06:38,940 INFO L387 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2021-12-06 20:06:38,940 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2021-12-06 20:06:38,940 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2021-12-06 20:06:39,099 INFO L129 PetriNetUnfolder]: 7413/27955 cut-off events. [2021-12-06 20:06:39,100 INFO L130 PetriNetUnfolder]: For 149013/158717 co-relation queries the response was YES. [2021-12-06 20:06:39,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97315 conditions, 27955 events. 7413/27955 cut-off events. For 149013/158717 co-relation queries the response was YES. Maximal size of possible extension queue 1993. Compared 394837 event pairs, 4206 based on Foata normal form. 56/26006 useless extension candidates. Maximal degree in co-relation 97180. Up to 10851 conditions per place. [2021-12-06 20:06:39,626 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 66 selfloop transitions, 13 changer transitions 43/664 dead transitions. [2021-12-06 20:06:39,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 664 transitions, 13125 flow [2021-12-06 20:06:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 20:06:39,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-12-06 20:06:39,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3536 transitions. [2021-12-06 20:06:39,629 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8467432950191571 [2021-12-06 20:06:39,629 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3536 transitions. [2021-12-06 20:06:39,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3536 transitions. [2021-12-06 20:06:39,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:06:39,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3536 transitions. [2021-12-06 20:06:39,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 196.44444444444446) internal successors, (3536), 18 states have internal predecessors, (3536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:39,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 232.0) internal successors, (4408), 19 states have internal predecessors, (4408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:39,633 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 232.0) internal successors, (4408), 19 states have internal predecessors, (4408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:39,633 INFO L186 Difference]: Start difference. First operand has 477 places, 615 transitions, 12573 flow. Second operand 18 states and 3536 transitions. [2021-12-06 20:06:39,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 664 transitions, 13125 flow [2021-12-06 20:06:40,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 664 transitions, 13016 flow, removed 23 selfloop flow, removed 11 redundant places. [2021-12-06 20:06:40,716 INFO L242 Difference]: Finished difference. Result has 482 places, 606 transitions, 12418 flow [2021-12-06 20:06:40,716 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=12486, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=12418, PETRI_PLACES=482, PETRI_TRANSITIONS=606} [2021-12-06 20:06:40,717 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 271 predicate places. [2021-12-06 20:06:40,717 INFO L470 AbstractCegarLoop]: Abstraction has has 482 places, 606 transitions, 12418 flow [2021-12-06 20:06:40,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:40,717 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:06:40,717 INFO L254 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] [2021-12-06 20:06:40,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-06 20:06:40,718 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:06:40,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:40,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1397001561, now seen corresponding path program 20 times [2021-12-06 20:06:40,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:06:40,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2917825] [2021-12-06 20:06:40,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:40,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:06:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:06:40,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:06:40,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:06:40,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2917825] [2021-12-06 20:06:40,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2917825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:06:40,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:06:40,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 20:06:40,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864535510] [2021-12-06 20:06:40,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:06:40,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:06:40,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:06:40,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:06:40,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:06:40,776 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 232 [2021-12-06 20:06:40,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 606 transitions, 12418 flow. Second operand has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:40,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:06:40,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 232 [2021-12-06 20:06:40,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:06:47,120 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] AssignedVars[][333], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= 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~sort_label_is_null_1~0 256)))]) [2021-12-06 20:06:47,121 INFO L384 tUnfolder$Statistics]: this new event has 151 ancestors and is cut-off event [2021-12-06 20:06:47,121 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2021-12-06 20:06:47,122 INFO L387 tUnfolder$Statistics]: existing Event has 151 ancestors and is cut-off event [2021-12-06 20:06:47,122 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2021-12-06 20:06:47,122 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, 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20:06:47,122 INFO L384 tUnfolder$Statistics]: this new event has 149 ancestors and is cut-off event [2021-12-06 20:06:47,122 INFO L387 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2021-12-06 20:06:47,122 INFO L387 tUnfolder$Statistics]: existing Event has 127 ancestors and is cut-off event [2021-12-06 20:06:47,122 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2021-12-06 20:06:47,135 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, 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and is cut-off event [2021-12-06 20:06:47,135 INFO L387 tUnfolder$Statistics]: existing Event has 133 ancestors and is cut-off event [2021-12-06 20:06:47,135 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2021-12-06 20:06:47,135 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2021-12-06 20:06:47,135 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} 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(or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 477#true, Black: 479#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 552#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 231#(= ~result_7~0 0), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:06:47,135 INFO L384 tUnfolder$Statistics]: this new event has 152 ancestors and is cut-off event [2021-12-06 20:06:47,135 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2021-12-06 20:06:47,135 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2021-12-06 20:06:47,135 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:06:47,136 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, 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Event has 127 ancestors and is cut-off event [2021-12-06 20:06:47,136 INFO L387 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2021-12-06 20:06:47,136 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] 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has 132 ancestors and is cut-off event [2021-12-06 20:06:47,136 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] AssignedVars[][333], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= 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event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] AssignedVars[][333], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 1657#true, Black: 237#(and (= ~result_8~0 0) (= 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388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:06:47,138 INFO L384 tUnfolder$Statistics]: this new event has 151 ancestors and is cut-off event [2021-12-06 20:06:47,138 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2021-12-06 20:06:47,138 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2021-12-06 20:06:47,138 INFO L387 tUnfolder$Statistics]: existing Event has 151 ancestors and is cut-off event [2021-12-06 20:06:47,138 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, 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this new event has 154 ancestors and is cut-off event [2021-12-06 20:06:47,138 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2021-12-06 20:06:47,138 INFO L387 tUnfolder$Statistics]: existing Event has 106 ancestors and is cut-off event [2021-12-06 20:06:47,138 INFO L387 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2021-12-06 20:06:47,139 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} 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has 126 ancestors and is cut-off event [2021-12-06 20:06:47,139 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2021-12-06 20:06:47,139 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:06:47,139 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, 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Black: 486#(and (or (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256)))))), Black: 477#true, Black: 479#(or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))))), 552#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:06:47,139 INFO L384 tUnfolder$Statistics]: this new event has 152 ancestors and is cut-off event [2021-12-06 20:06:47,139 INFO L387 tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2021-12-06 20:06:47,139 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:06:47,139 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2021-12-06 20:06:47,140 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, 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has 103 ancestors and is cut-off event [2021-12-06 20:06:47,140 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2021-12-06 20:06:47,140 INFO L387 tUnfolder$Statistics]: existing Event has 151 ancestors and is cut-off event [2021-12-06 20:06:47,140 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, 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[2021-12-06 20:06:47,140 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2021-12-06 20:06:47,140 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] AssignedVars[][333], [Black: 233#(and (= 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L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} AuxVars[] AssignedVars[][333], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), 1657#true, Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 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Black: 231#(= ~result_7~0 0), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:06:47,142 INFO L384 tUnfolder$Statistics]: this new event has 152 ancestors and is cut-off event [2021-12-06 20:06:47,142 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:06:47,142 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2021-12-06 20:06:47,142 INFO L387 tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2021-12-06 20:06:47,143 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars 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20:06:47,143 INFO L384 tUnfolder$Statistics]: this new event has 150 ancestors and is cut-off event [2021-12-06 20:06:47,143 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:06:47,143 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2021-12-06 20:06:47,143 INFO L387 tUnfolder$Statistics]: existing Event has 150 ancestors and is cut-off event [2021-12-06 20:06:47,143 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, 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this new event has 153 ancestors and is cut-off event [2021-12-06 20:06:47,143 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2021-12-06 20:06:47,143 INFO L387 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2021-12-06 20:06:47,143 INFO L387 tUnfolder$Statistics]: existing Event has 127 ancestors and is cut-off event [2021-12-06 20:06:47,144 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([672] thread1EXIT-->L75-2: Formula: (and (= v_thread1Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread1Thread1of1ForFork0_thidvar0_4)) InVars {thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_4, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_5|} 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Event has 128 ancestors and is cut-off event [2021-12-06 20:06:47,144 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-06 20:06:47,144 INFO L387 tUnfolder$Statistics]: existing Event has 150 ancestors and is cut-off event [2021-12-06 20:06:47,206 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite11#1_7| |v_thread3Thread1of1ForFork2_#t~ite10#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][434], [Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 1657#true, Black: 237#(and (= ~result_8~0 0) (= 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20:06:47,242 INFO L384 tUnfolder$Statistics]: this new event has 149 ancestors and is cut-off event [2021-12-06 20:06:47,242 INFO L387 tUnfolder$Statistics]: existing Event has 127 ancestors and is cut-off event [2021-12-06 20:06:47,242 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2021-12-06 20:06:47,242 INFO L387 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2021-12-06 20:06:47,280 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite11#1_7| |v_thread3Thread1of1ForFork2_#t~ite10#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][434], 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has 150 ancestors and is cut-off event [2021-12-06 20:06:47,318 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite11#1_7| |v_thread3Thread1of1ForFork2_#t~ite10#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][434], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 1657#true, Black: 237#(and (= ~result_8~0 0) (= |thread2Thread1of1ForFork1_#t~ite8#1| 0) (= ~result_7~0 0)), Black: 1488#(and (<= (+ |thread3Thread1of1ForFork2_#t~ite11#1| 1) 0) (<= (+ |thread2Thread1of1ForFork1_#t~ite7#1| 1) 0)), Black: 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has 152 ancestors and is cut-off event [2021-12-06 20:06:47,354 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2021-12-06 20:06:47,354 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2021-12-06 20:06:47,508 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([635] L56-15-->L56-16: Formula: (= |v_thread3Thread1of1ForFork2_#t~ite11#1_7| |v_thread3Thread1of1ForFork2_#t~ite10#1_3|) InVars {thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} OutVars{thread3Thread1of1ForFork2_#t~ite11#1=|v_thread3Thread1of1ForFork2_#t~ite11#1_7|, thread3Thread1of1ForFork2_#t~ite10#1=|v_thread3Thread1of1ForFork2_#t~ite10#1_3|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~ite11#1][434], [Black: 233#(and (= ~result_8~0 0) (= ~result_7~0 0)), Black: 239#(and (= ~result_8~0 0) (= ~result_7~0 0) (= |thread3Thread1of1ForFork2_#t~ite12#1| 0)), 1657#true, Black: 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~sort_label_is_null_5~0 256))))), 552#(and (= ~sort_label_is_null_5~0 (* 256 (div ~sort_label_is_null_5~0 256))) (or (= ~sort_label_is_null_3~0 (* 256 (div ~sort_label_is_null_3~0 256))) (not (= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))))), Black: 231#(= ~result_7~0 0), 388#(= ~sort_label_is_null_1~0 (* 256 (div ~sort_label_is_null_1~0 256)))]) [2021-12-06 20:06:47,508 INFO L384 tUnfolder$Statistics]: this new event has 159 ancestors and is cut-off event [2021-12-06 20:06:47,508 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2021-12-06 20:06:47,509 INFO L387 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2021-12-06 20:06:47,509 INFO L387 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2021-12-06 20:06:47,571 INFO L129 PetriNetUnfolder]: 6783/25166 cut-off events. [2021-12-06 20:06:47,571 INFO L130 PetriNetUnfolder]: For 134669/144373 co-relation queries the response was YES. [2021-12-06 20:06:47,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85685 conditions, 25166 events. 6783/25166 cut-off events. For 134669/144373 co-relation queries the response was YES. Maximal size of possible extension queue 1556. Compared 347720 event pairs, 4122 based on Foata normal form. 56/23327 useless extension candidates. Maximal degree in co-relation 85549. Up to 10347 conditions per place. [2021-12-06 20:06:48,074 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 56 selfloop transitions, 2 changer transitions 83/645 dead transitions. [2021-12-06 20:06:48,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 645 transitions, 12814 flow [2021-12-06 20:06:48,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 20:06:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-06 20:06:48,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3333 transitions. [2021-12-06 20:06:48,077 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8450811359026369 [2021-12-06 20:06:48,077 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3333 transitions. [2021-12-06 20:06:48,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3333 transitions. [2021-12-06 20:06:48,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:06:48,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3333 transitions. [2021-12-06 20:06:48,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 196.05882352941177) internal successors, (3333), 17 states have internal predecessors, (3333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:48,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 232.0) internal successors, (4176), 18 states have internal predecessors, (4176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:48,081 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 232.0) internal successors, (4176), 18 states have internal predecessors, (4176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:48,082 INFO L186 Difference]: Start difference. First operand has 482 places, 606 transitions, 12418 flow. Second operand 17 states and 3333 transitions. [2021-12-06 20:06:48,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 645 transitions, 12814 flow [2021-12-06 20:06:49,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 645 transitions, 12715 flow, removed 23 selfloop flow, removed 20 redundant places. [2021-12-06 20:06:49,222 INFO L242 Difference]: Finished difference. Result has 466 places, 549 transitions, 10921 flow [2021-12-06 20:06:49,223 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=12329, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10921, PETRI_PLACES=466, PETRI_TRANSITIONS=549} [2021-12-06 20:06:49,223 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 255 predicate places. [2021-12-06 20:06:49,223 INFO L470 AbstractCegarLoop]: Abstraction has has 466 places, 549 transitions, 10921 flow [2021-12-06 20:06:49,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 193.6) internal successors, (1936), 10 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:49,223 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:06:49,224 INFO L254 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] [2021-12-06 20:06:49,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-06 20:06:49,224 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:06:49,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:49,224 INFO L85 PathProgramCache]: Analyzing trace with hash 2043943100, now seen corresponding path program 3 times [2021-12-06 20:06:49,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:06:49,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368329806] [2021-12-06 20:06:49,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:49,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:06:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:06:49,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:06:49,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:06:49,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368329806] [2021-12-06 20:06:49,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368329806] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:06:49,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:06:49,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:06:49,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473218060] [2021-12-06 20:06:49,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:06:49,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:06:49,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:06:49,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:06:49,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:06:49,275 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:06:49,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 549 transitions, 10921 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:49,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:06:49,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:06:49,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:06:52,778 INFO L129 PetriNetUnfolder]: 2194/17146 cut-off events. [2021-12-06 20:06:52,778 INFO L130 PetriNetUnfolder]: For 121753/122442 co-relation queries the response was YES. [2021-12-06 20:06:52,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54034 conditions, 17146 events. 2194/17146 cut-off events. For 121753/122442 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 232628 event pairs, 981 based on Foata normal form. 125/16242 useless extension candidates. Maximal degree in co-relation 53908. Up to 1296 conditions per place. [2021-12-06 20:06:53,034 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 328 selfloop transitions, 106 changer transitions 1/632 dead transitions. [2021-12-06 20:06:53,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 632 transitions, 13518 flow [2021-12-06 20:06:53,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:06:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:06:53,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1050 transitions. [2021-12-06 20:06:53,035 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9051724137931034 [2021-12-06 20:06:53,035 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1050 transitions. [2021-12-06 20:06:53,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1050 transitions. [2021-12-06 20:06:53,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:06:53,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1050 transitions. [2021-12-06 20:06:53,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:53,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:53,037 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:53,037 INFO L186 Difference]: Start difference. First operand has 466 places, 549 transitions, 10921 flow. Second operand 5 states and 1050 transitions. [2021-12-06 20:06:53,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 632 transitions, 13518 flow [2021-12-06 20:06:53,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 632 transitions, 12406 flow, removed 203 selfloop flow, removed 30 redundant places. [2021-12-06 20:06:53,676 INFO L242 Difference]: Finished difference. Result has 405 places, 569 transitions, 10827 flow [2021-12-06 20:06:53,676 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=9913, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=10827, PETRI_PLACES=405, PETRI_TRANSITIONS=569} [2021-12-06 20:06:53,677 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 194 predicate places. [2021-12-06 20:06:53,677 INFO L470 AbstractCegarLoop]: Abstraction has has 405 places, 569 transitions, 10827 flow [2021-12-06 20:06:53,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:53,677 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:06:53,677 INFO L254 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] [2021-12-06 20:06:53,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-06 20:06:53,677 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:06:53,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:53,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1904873084, now seen corresponding path program 2 times [2021-12-06 20:06:53,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:06:53,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181794059] [2021-12-06 20:06:53,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:53,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:06:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:06:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:06:53,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:06:53,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181794059] [2021-12-06 20:06:53,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181794059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:06:53,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:06:53,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:06:53,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816926952] [2021-12-06 20:06:53,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:06:53,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:06:53,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:06:53,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:06:53,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:06:53,718 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:06:53,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 569 transitions, 10827 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:53,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:06:53,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:06:53,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:06:56,672 INFO L129 PetriNetUnfolder]: 2080/15114 cut-off events. [2021-12-06 20:06:56,672 INFO L130 PetriNetUnfolder]: For 102967/103619 co-relation queries the response was YES. [2021-12-06 20:06:56,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48602 conditions, 15114 events. 2080/15114 cut-off events. For 102967/103619 co-relation queries the response was YES. Maximal size of possible extension queue 553. Compared 202728 event pairs, 923 based on Foata normal form. 111/14298 useless extension candidates. Maximal degree in co-relation 48497. Up to 1160 conditions per place. [2021-12-06 20:06:56,940 INFO L132 encePairwiseOnDemand]: 216/232 looper letters, 312 selfloop transitions, 125 changer transitions 5/639 dead transitions. [2021-12-06 20:06:56,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 639 transitions, 13006 flow [2021-12-06 20:06:56,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:06:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:06:56,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1449 transitions. [2021-12-06 20:06:56,942 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8922413793103449 [2021-12-06 20:06:56,942 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1449 transitions. [2021-12-06 20:06:56,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1449 transitions. [2021-12-06 20:06:56,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:06:56,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1449 transitions. [2021-12-06 20:06:56,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:56,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:56,944 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:56,944 INFO L186 Difference]: Start difference. First operand has 405 places, 569 transitions, 10827 flow. Second operand 7 states and 1449 transitions. [2021-12-06 20:06:56,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 639 transitions, 13006 flow [2021-12-06 20:06:57,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 639 transitions, 12996 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-12-06 20:06:57,546 INFO L242 Difference]: Finished difference. Result has 414 places, 576 transitions, 11453 flow [2021-12-06 20:06:57,547 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=10817, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=569, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11453, PETRI_PLACES=414, PETRI_TRANSITIONS=576} [2021-12-06 20:06:57,547 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 203 predicate places. [2021-12-06 20:06:57,547 INFO L470 AbstractCegarLoop]: Abstraction has has 414 places, 576 transitions, 11453 flow [2021-12-06 20:06:57,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:57,547 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:06:57,548 INFO L254 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] [2021-12-06 20:06:57,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-06 20:06:57,548 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:06:57,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:57,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1817050618, now seen corresponding path program 4 times [2021-12-06 20:06:57,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:06:57,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539017221] [2021-12-06 20:06:57,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:57,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:06:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:06:57,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:06:57,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:06:57,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539017221] [2021-12-06 20:06:57,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539017221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:06:57,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:06:57,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:06:57,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726925062] [2021-12-06 20:06:57,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:06:57,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:06:57,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:06:57,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:06:57,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:06:57,600 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:06:57,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 576 transitions, 11453 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:57,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:06:57,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:06:57,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:01,087 INFO L129 PetriNetUnfolder]: 2246/17491 cut-off events. [2021-12-06 20:07:01,087 INFO L130 PetriNetUnfolder]: For 117989/118673 co-relation queries the response was YES. [2021-12-06 20:07:01,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54478 conditions, 17491 events. 2246/17491 cut-off events. For 117989/118673 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 237611 event pairs, 1160 based on Foata normal form. 148/16622 useless extension candidates. Maximal degree in co-relation 54370. Up to 1385 conditions per place. [2021-12-06 20:07:01,349 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 327 selfloop transitions, 111 changer transitions 1/636 dead transitions. [2021-12-06 20:07:01,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 636 transitions, 13477 flow [2021-12-06 20:07:01,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:07:01,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:07:01,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1045 transitions. [2021-12-06 20:07:01,351 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9008620689655172 [2021-12-06 20:07:01,351 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1045 transitions. [2021-12-06 20:07:01,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1045 transitions. [2021-12-06 20:07:01,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:01,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1045 transitions. [2021-12-06 20:07:01,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:01,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:01,352 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:01,352 INFO L186 Difference]: Start difference. First operand has 414 places, 576 transitions, 11453 flow. Second operand 5 states and 1045 transitions. [2021-12-06 20:07:01,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 636 transitions, 13477 flow [2021-12-06 20:07:01,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 636 transitions, 13455 flow, removed 11 selfloop flow, removed 0 redundant places. [2021-12-06 20:07:01,870 INFO L242 Difference]: Finished difference. Result has 421 places, 589 transitions, 12171 flow [2021-12-06 20:07:01,870 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=11431, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=12171, PETRI_PLACES=421, PETRI_TRANSITIONS=589} [2021-12-06 20:07:01,871 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 210 predicate places. [2021-12-06 20:07:01,871 INFO L470 AbstractCegarLoop]: Abstraction has has 421 places, 589 transitions, 12171 flow [2021-12-06 20:07:01,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:01,871 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:01,871 INFO L254 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] [2021-12-06 20:07:01,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-06 20:07:01,871 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:01,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:01,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1794226440, now seen corresponding path program 5 times [2021-12-06 20:07:01,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:01,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999404845] [2021-12-06 20:07:01,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:01,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:01,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:01,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:01,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999404845] [2021-12-06 20:07:01,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999404845] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:01,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:01,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:01,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948190788] [2021-12-06 20:07:01,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:01,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:01,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:01,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:01,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:01,926 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:01,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 589 transitions, 12171 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:01,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:01,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:01,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:05,421 INFO L129 PetriNetUnfolder]: 2284/17541 cut-off events. [2021-12-06 20:07:05,421 INFO L130 PetriNetUnfolder]: For 124755/125432 co-relation queries the response was YES. [2021-12-06 20:07:05,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55630 conditions, 17541 events. 2284/17541 cut-off events. For 124755/125432 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 238865 event pairs, 1203 based on Foata normal form. 133/16656 useless extension candidates. Maximal degree in co-relation 55518. Up to 1426 conditions per place. [2021-12-06 20:07:05,670 INFO L132 encePairwiseOnDemand]: 220/232 looper letters, 341 selfloop transitions, 89 changer transitions 0/627 dead transitions. [2021-12-06 20:07:05,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 627 transitions, 13651 flow [2021-12-06 20:07:05,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:07:05,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:07:05,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1042 transitions. [2021-12-06 20:07:05,672 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8982758620689655 [2021-12-06 20:07:05,672 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1042 transitions. [2021-12-06 20:07:05,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1042 transitions. [2021-12-06 20:07:05,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:05,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1042 transitions. [2021-12-06 20:07:05,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.4) internal successors, (1042), 5 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:05,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:05,673 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:05,673 INFO L186 Difference]: Start difference. First operand has 421 places, 589 transitions, 12171 flow. Second operand 5 states and 1042 transitions. [2021-12-06 20:07:05,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 627 transitions, 13651 flow [2021-12-06 20:07:06,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 627 transitions, 13582 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-12-06 20:07:06,216 INFO L242 Difference]: Finished difference. Result has 425 places, 590 transitions, 12346 flow [2021-12-06 20:07:06,216 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=12102, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=12346, PETRI_PLACES=425, PETRI_TRANSITIONS=590} [2021-12-06 20:07:06,216 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 214 predicate places. [2021-12-06 20:07:06,217 INFO L470 AbstractCegarLoop]: Abstraction has has 425 places, 590 transitions, 12346 flow [2021-12-06 20:07:06,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:06,217 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:06,217 INFO L254 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] [2021-12-06 20:07:06,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-06 20:07:06,217 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:06,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash -821719914, now seen corresponding path program 6 times [2021-12-06 20:07:06,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:06,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565745608] [2021-12-06 20:07:06,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:06,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:06,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:06,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565745608] [2021-12-06 20:07:06,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565745608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:06,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:06,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:06,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721059008] [2021-12-06 20:07:06,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:06,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:06,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:06,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:06,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:06,265 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:06,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 590 transitions, 12346 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:06,265 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:06,265 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:06,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:09,757 INFO L129 PetriNetUnfolder]: 2280/17301 cut-off events. [2021-12-06 20:07:09,757 INFO L130 PetriNetUnfolder]: For 132651/133363 co-relation queries the response was YES. [2021-12-06 20:07:09,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56077 conditions, 17301 events. 2280/17301 cut-off events. For 132651/133363 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 236882 event pairs, 1182 based on Foata normal form. 124/16412 useless extension candidates. Maximal degree in co-relation 55963. Up to 1434 conditions per place. [2021-12-06 20:07:10,012 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 369 selfloop transitions, 71 changer transitions 0/637 dead transitions. [2021-12-06 20:07:10,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 637 transitions, 14236 flow [2021-12-06 20:07:10,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:07:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:07:10,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1037 transitions. [2021-12-06 20:07:10,013 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8939655172413793 [2021-12-06 20:07:10,013 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1037 transitions. [2021-12-06 20:07:10,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1037 transitions. [2021-12-06 20:07:10,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:10,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1037 transitions. [2021-12-06 20:07:10,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.4) internal successors, (1037), 5 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:10,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:10,015 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:10,015 INFO L186 Difference]: Start difference. First operand has 425 places, 590 transitions, 12346 flow. Second operand 5 states and 1037 transitions. [2021-12-06 20:07:10,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 637 transitions, 14236 flow [2021-12-06 20:07:10,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 637 transitions, 14183 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-12-06 20:07:10,563 INFO L242 Difference]: Finished difference. Result has 430 places, 601 transitions, 12952 flow [2021-12-06 20:07:10,563 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=12259, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=12952, PETRI_PLACES=430, PETRI_TRANSITIONS=601} [2021-12-06 20:07:10,564 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 219 predicate places. [2021-12-06 20:07:10,564 INFO L470 AbstractCegarLoop]: Abstraction has has 430 places, 601 transitions, 12952 flow [2021-12-06 20:07:10,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:10,564 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:10,564 INFO L254 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] [2021-12-06 20:07:10,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-06 20:07:10,564 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:10,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:10,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2038576098, now seen corresponding path program 7 times [2021-12-06 20:07:10,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:10,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489255329] [2021-12-06 20:07:10,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:10,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:10,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:10,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489255329] [2021-12-06 20:07:10,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489255329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:10,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:10,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:10,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018152857] [2021-12-06 20:07:10,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:10,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:10,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:10,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:10,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:10,600 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:10,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 601 transitions, 12952 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:10,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:10,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:10,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:14,070 INFO L129 PetriNetUnfolder]: 2203/16531 cut-off events. [2021-12-06 20:07:14,070 INFO L130 PetriNetUnfolder]: For 135769/136412 co-relation queries the response was YES. [2021-12-06 20:07:14,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54832 conditions, 16531 events. 2203/16531 cut-off events. For 135769/136412 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 224669 event pairs, 1118 based on Foata normal form. 119/15698 useless extension candidates. Maximal degree in co-relation 54716. Up to 1302 conditions per place. [2021-12-06 20:07:14,345 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 317 selfloop transitions, 139 changer transitions 0/653 dead transitions. [2021-12-06 20:07:14,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 653 transitions, 14687 flow [2021-12-06 20:07:14,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:07:14,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:07:14,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1440 transitions. [2021-12-06 20:07:14,346 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8866995073891626 [2021-12-06 20:07:14,346 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1440 transitions. [2021-12-06 20:07:14,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1440 transitions. [2021-12-06 20:07:14,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:14,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1440 transitions. [2021-12-06 20:07:14,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 205.71428571428572) internal successors, (1440), 7 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:14,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:14,348 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:14,348 INFO L186 Difference]: Start difference. First operand has 430 places, 601 transitions, 12952 flow. Second operand 7 states and 1440 transitions. [2021-12-06 20:07:14,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 653 transitions, 14687 flow [2021-12-06 20:07:14,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 653 transitions, 14642 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-06 20:07:15,007 INFO L242 Difference]: Finished difference. Result has 434 places, 601 transitions, 13225 flow [2021-12-06 20:07:15,008 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=12907, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=13225, PETRI_PLACES=434, PETRI_TRANSITIONS=601} [2021-12-06 20:07:15,008 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 223 predicate places. [2021-12-06 20:07:15,008 INFO L470 AbstractCegarLoop]: Abstraction has has 434 places, 601 transitions, 13225 flow [2021-12-06 20:07:15,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:15,008 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:15,009 INFO L254 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] [2021-12-06 20:07:15,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-06 20:07:15,009 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:15,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:15,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1665421280, now seen corresponding path program 8 times [2021-12-06 20:07:15,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:15,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555118211] [2021-12-06 20:07:15,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:15,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:15,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:15,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555118211] [2021-12-06 20:07:15,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555118211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:15,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:15,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:15,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444064140] [2021-12-06 20:07:15,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:15,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:15,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:15,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:15,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:15,071 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:15,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 601 transitions, 13225 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:15,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:15,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:15,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:19,008 INFO L129 PetriNetUnfolder]: 2389/18672 cut-off events. [2021-12-06 20:07:19,008 INFO L130 PetriNetUnfolder]: For 147953/148755 co-relation queries the response was YES. [2021-12-06 20:07:19,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60337 conditions, 18672 events. 2389/18672 cut-off events. For 147953/148755 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 259090 event pairs, 1251 based on Foata normal form. 141/17735 useless extension candidates. Maximal degree in co-relation 60222. Up to 1467 conditions per place. [2021-12-06 20:07:19,357 INFO L132 encePairwiseOnDemand]: 219/232 looper letters, 380 selfloop transitions, 99 changer transitions 1/677 dead transitions. [2021-12-06 20:07:19,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 677 transitions, 15828 flow [2021-12-06 20:07:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:07:19,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:07:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1244 transitions. [2021-12-06 20:07:19,358 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8936781609195402 [2021-12-06 20:07:19,358 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1244 transitions. [2021-12-06 20:07:19,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1244 transitions. [2021-12-06 20:07:19,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:19,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1244 transitions. [2021-12-06 20:07:19,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.33333333333334) internal successors, (1244), 6 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:19,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:19,360 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:19,360 INFO L186 Difference]: Start difference. First operand has 434 places, 601 transitions, 13225 flow. Second operand 6 states and 1244 transitions. [2021-12-06 20:07:19,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 677 transitions, 15828 flow [2021-12-06 20:07:20,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 677 transitions, 15783 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 20:07:20,029 INFO L242 Difference]: Finished difference. Result has 441 places, 613 transitions, 14080 flow [2021-12-06 20:07:20,029 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=13185, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=14080, PETRI_PLACES=441, PETRI_TRANSITIONS=613} [2021-12-06 20:07:20,030 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 230 predicate places. [2021-12-06 20:07:20,030 INFO L470 AbstractCegarLoop]: Abstraction has has 441 places, 613 transitions, 14080 flow [2021-12-06 20:07:20,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:20,030 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:20,030 INFO L254 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] [2021-12-06 20:07:20,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-06 20:07:20,030 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:20,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:20,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1103646550, now seen corresponding path program 9 times [2021-12-06 20:07:20,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:20,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859169614] [2021-12-06 20:07:20,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:20,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:20,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:20,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:20,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859169614] [2021-12-06 20:07:20,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859169614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:20,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:20,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:20,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782525987] [2021-12-06 20:07:20,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:20,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:20,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:20,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:20,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:20,081 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:20,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 613 transitions, 14080 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:20,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:20,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:20,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:24,107 INFO L129 PetriNetUnfolder]: 2480/19569 cut-off events. [2021-12-06 20:07:24,107 INFO L130 PetriNetUnfolder]: For 155856/156600 co-relation queries the response was YES. [2021-12-06 20:07:24,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62768 conditions, 19569 events. 2480/19569 cut-off events. For 155856/156600 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 271574 event pairs, 1216 based on Foata normal form. 144/18560 useless extension candidates. Maximal degree in co-relation 62648. Up to 1539 conditions per place. [2021-12-06 20:07:24,537 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 377 selfloop transitions, 77 changer transitions 1/652 dead transitions. [2021-12-06 20:07:24,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 652 transitions, 15625 flow [2021-12-06 20:07:24,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:07:24,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:07:24,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1034 transitions. [2021-12-06 20:07:24,539 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8913793103448275 [2021-12-06 20:07:24,539 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1034 transitions. [2021-12-06 20:07:24,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1034 transitions. [2021-12-06 20:07:24,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:24,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1034 transitions. [2021-12-06 20:07:24,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 206.8) internal successors, (1034), 5 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:24,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:24,541 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:24,541 INFO L186 Difference]: Start difference. First operand has 441 places, 613 transitions, 14080 flow. Second operand 5 states and 1034 transitions. [2021-12-06 20:07:24,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 652 transitions, 15625 flow [2021-12-06 20:07:25,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 652 transitions, 15555 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-12-06 20:07:25,360 INFO L242 Difference]: Finished difference. Result has 445 places, 615 transitions, 14311 flow [2021-12-06 20:07:25,361 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=13913, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=14311, PETRI_PLACES=445, PETRI_TRANSITIONS=615} [2021-12-06 20:07:25,361 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 234 predicate places. [2021-12-06 20:07:25,361 INFO L470 AbstractCegarLoop]: Abstraction has has 445 places, 615 transitions, 14311 flow [2021-12-06 20:07:25,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:25,362 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:25,362 INFO L254 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] [2021-12-06 20:07:25,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-06 20:07:25,362 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:25,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:25,362 INFO L85 PathProgramCache]: Analyzing trace with hash 589979716, now seen corresponding path program 3 times [2021-12-06 20:07:25,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:25,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402591764] [2021-12-06 20:07:25,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:25,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:25,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:25,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402591764] [2021-12-06 20:07:25,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402591764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:25,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:25,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:25,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785217254] [2021-12-06 20:07:25,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:25,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:25,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:25,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:25,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:25,438 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:25,438 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 615 transitions, 14311 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:25,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:25,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:25,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:29,573 INFO L129 PetriNetUnfolder]: 2424/18015 cut-off events. [2021-12-06 20:07:29,573 INFO L130 PetriNetUnfolder]: For 170900/171727 co-relation queries the response was YES. [2021-12-06 20:07:29,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60995 conditions, 18015 events. 2424/18015 cut-off events. For 170900/171727 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 248689 event pairs, 1237 based on Foata normal form. 134/17131 useless extension candidates. Maximal degree in co-relation 60874. Up to 1394 conditions per place. [2021-12-06 20:07:29,879 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 357 selfloop transitions, 176 changer transitions 1/731 dead transitions. [2021-12-06 20:07:29,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 731 transitions, 17957 flow [2021-12-06 20:07:29,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:07:29,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:07:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1466 transitions. [2021-12-06 20:07:29,881 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9027093596059114 [2021-12-06 20:07:29,881 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1466 transitions. [2021-12-06 20:07:29,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1466 transitions. [2021-12-06 20:07:29,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:29,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1466 transitions. [2021-12-06 20:07:29,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 209.42857142857142) internal successors, (1466), 7 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:29,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:29,883 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:29,883 INFO L186 Difference]: Start difference. First operand has 445 places, 615 transitions, 14311 flow. Second operand 7 states and 1466 transitions. [2021-12-06 20:07:29,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 731 transitions, 17957 flow [2021-12-06 20:07:30,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 731 transitions, 17942 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 20:07:30,649 INFO L242 Difference]: Finished difference. Result has 456 places, 658 transitions, 16352 flow [2021-12-06 20:07:30,649 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=14296, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16352, PETRI_PLACES=456, PETRI_TRANSITIONS=658} [2021-12-06 20:07:30,650 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 245 predicate places. [2021-12-06 20:07:30,650 INFO L470 AbstractCegarLoop]: Abstraction has has 456 places, 658 transitions, 16352 flow [2021-12-06 20:07:30,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:30,650 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:30,650 INFO L254 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] [2021-12-06 20:07:30,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-06 20:07:30,650 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:30,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash -714823248, now seen corresponding path program 4 times [2021-12-06 20:07:30,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:30,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814938896] [2021-12-06 20:07:30,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:30,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:30,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:30,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:30,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814938896] [2021-12-06 20:07:30,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814938896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:30,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:30,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:30,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582729377] [2021-12-06 20:07:30,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:30,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:30,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:30,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:30,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:30,706 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:30,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 658 transitions, 16352 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:30,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:30,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:30,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:35,351 INFO L129 PetriNetUnfolder]: 2727/20940 cut-off events. [2021-12-06 20:07:35,351 INFO L130 PetriNetUnfolder]: For 194474/195516 co-relation queries the response was YES. [2021-12-06 20:07:35,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68973 conditions, 20940 events. 2727/20940 cut-off events. For 194474/195516 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 296280 event pairs, 1433 based on Foata normal form. 165/19862 useless extension candidates. Maximal degree in co-relation 68847. Up to 1694 conditions per place. [2021-12-06 20:07:35,743 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 395 selfloop transitions, 145 changer transitions 0/737 dead transitions. [2021-12-06 20:07:35,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 737 transitions, 19151 flow [2021-12-06 20:07:35,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:07:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:07:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1259 transitions. [2021-12-06 20:07:35,745 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9044540229885057 [2021-12-06 20:07:35,745 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1259 transitions. [2021-12-06 20:07:35,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1259 transitions. [2021-12-06 20:07:35,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:35,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1259 transitions. [2021-12-06 20:07:35,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.83333333333334) internal successors, (1259), 6 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:35,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:35,747 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:35,747 INFO L186 Difference]: Start difference. First operand has 456 places, 658 transitions, 16352 flow. Second operand 6 states and 1259 transitions. [2021-12-06 20:07:35,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 737 transitions, 19151 flow [2021-12-06 20:07:36,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 737 transitions, 19099 flow, removed 26 selfloop flow, removed 0 redundant places. [2021-12-06 20:07:36,682 INFO L242 Difference]: Finished difference. Result has 465 places, 677 transitions, 17497 flow [2021-12-06 20:07:36,682 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=16302, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=17497, PETRI_PLACES=465, PETRI_TRANSITIONS=677} [2021-12-06 20:07:36,682 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 254 predicate places. [2021-12-06 20:07:36,683 INFO L470 AbstractCegarLoop]: Abstraction has has 465 places, 677 transitions, 17497 flow [2021-12-06 20:07:36,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:36,683 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:36,683 INFO L254 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] [2021-12-06 20:07:36,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-06 20:07:36,683 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:36,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:36,683 INFO L85 PathProgramCache]: Analyzing trace with hash 497248870, now seen corresponding path program 5 times [2021-12-06 20:07:36,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:36,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065979760] [2021-12-06 20:07:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:36,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:36,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:36,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065979760] [2021-12-06 20:07:36,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065979760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:36,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:36,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:36,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183685687] [2021-12-06 20:07:36,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:36,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:36,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:36,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:36,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:36,755 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:36,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 677 transitions, 17497 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:36,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:36,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:36,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:41,688 INFO L129 PetriNetUnfolder]: 2703/21992 cut-off events. [2021-12-06 20:07:41,688 INFO L130 PetriNetUnfolder]: For 207962/208861 co-relation queries the response was YES. [2021-12-06 20:07:42,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70993 conditions, 21992 events. 2703/21992 cut-off events. For 207962/208861 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 312350 event pairs, 1515 based on Foata normal form. 167/20840 useless extension candidates. Maximal degree in co-relation 70862. Up to 1711 conditions per place. [2021-12-06 20:07:42,080 INFO L132 encePairwiseOnDemand]: 225/232 looper letters, 429 selfloop transitions, 81 changer transitions 6/713 dead transitions. [2021-12-06 20:07:42,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 713 transitions, 19139 flow [2021-12-06 20:07:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:07:42,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:07:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1034 transitions. [2021-12-06 20:07:42,082 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8913793103448275 [2021-12-06 20:07:42,082 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1034 transitions. [2021-12-06 20:07:42,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1034 transitions. [2021-12-06 20:07:42,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:42,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1034 transitions. [2021-12-06 20:07:42,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 206.8) internal successors, (1034), 5 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:42,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:42,084 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:42,084 INFO L186 Difference]: Start difference. First operand has 465 places, 677 transitions, 17497 flow. Second operand 5 states and 1034 transitions. [2021-12-06 20:07:42,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 713 transitions, 19139 flow [2021-12-06 20:07:43,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 713 transitions, 19123 flow, removed 8 selfloop flow, removed 0 redundant places. [2021-12-06 20:07:43,124 INFO L242 Difference]: Finished difference. Result has 471 places, 675 transitions, 17661 flow [2021-12-06 20:07:43,125 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=17354, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=17661, PETRI_PLACES=471, PETRI_TRANSITIONS=675} [2021-12-06 20:07:43,125 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 260 predicate places. [2021-12-06 20:07:43,125 INFO L470 AbstractCegarLoop]: Abstraction has has 471 places, 675 transitions, 17661 flow [2021-12-06 20:07:43,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:43,126 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:43,126 INFO L254 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] [2021-12-06 20:07:43,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-06 20:07:43,126 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:43,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:43,126 INFO L85 PathProgramCache]: Analyzing trace with hash 413018746, now seen corresponding path program 6 times [2021-12-06 20:07:43,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:43,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399443727] [2021-12-06 20:07:43,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:43,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:43,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:43,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399443727] [2021-12-06 20:07:43,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399443727] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:43,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:43,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:43,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78270955] [2021-12-06 20:07:43,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:43,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:43,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:43,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:43,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:43,157 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:43,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 675 transitions, 17661 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:43,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:43,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:43,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:47,944 INFO L129 PetriNetUnfolder]: 2611/20185 cut-off events. [2021-12-06 20:07:47,944 INFO L130 PetriNetUnfolder]: For 214806/215715 co-relation queries the response was YES. [2021-12-06 20:07:48,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68143 conditions, 20185 events. 2611/20185 cut-off events. For 214806/215715 co-relation queries the response was YES. Maximal size of possible extension queue 679. Compared 284251 event pairs, 1325 based on Foata normal form. 139/19152 useless extension candidates. Maximal degree in co-relation 68009. Up to 1600 conditions per place. [2021-12-06 20:07:48,289 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 360 selfloop transitions, 179 changer transitions 1/737 dead transitions. [2021-12-06 20:07:48,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 737 transitions, 19936 flow [2021-12-06 20:07:48,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:07:48,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 20:07:48,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1450 transitions. [2021-12-06 20:07:48,291 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2021-12-06 20:07:48,291 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1450 transitions. [2021-12-06 20:07:48,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1450 transitions. [2021-12-06 20:07:48,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:48,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1450 transitions. [2021-12-06 20:07:48,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 207.14285714285714) internal successors, (1450), 7 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:48,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:48,293 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:48,294 INFO L186 Difference]: Start difference. First operand has 471 places, 675 transitions, 17661 flow. Second operand 7 states and 1450 transitions. [2021-12-06 20:07:48,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 737 transitions, 19936 flow [2021-12-06 20:07:49,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 737 transitions, 19920 flow, removed 8 selfloop flow, removed 0 redundant places. [2021-12-06 20:07:49,358 INFO L242 Difference]: Finished difference. Result has 477 places, 682 transitions, 18332 flow [2021-12-06 20:07:49,358 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=17645, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18332, PETRI_PLACES=477, PETRI_TRANSITIONS=682} [2021-12-06 20:07:49,358 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 266 predicate places. [2021-12-06 20:07:49,358 INFO L470 AbstractCegarLoop]: Abstraction has has 477 places, 682 transitions, 18332 flow [2021-12-06 20:07:49,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:49,359 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:49,359 INFO L254 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] [2021-12-06 20:07:49,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-12-06 20:07:49,359 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:49,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:49,359 INFO L85 PathProgramCache]: Analyzing trace with hash -978833514, now seen corresponding path program 7 times [2021-12-06 20:07:49,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:49,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449032312] [2021-12-06 20:07:49,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:49,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:49,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:49,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449032312] [2021-12-06 20:07:49,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449032312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:49,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:49,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:49,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032848181] [2021-12-06 20:07:49,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:49,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:49,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:49,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:49,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:49,426 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:49,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 682 transitions, 18332 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:49,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:49,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:49,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:07:54,623 INFO L129 PetriNetUnfolder]: 2769/22349 cut-off events. [2021-12-06 20:07:54,623 INFO L130 PetriNetUnfolder]: For 224638/225541 co-relation queries the response was YES. [2021-12-06 20:07:54,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72545 conditions, 22349 events. 2769/22349 cut-off events. For 224638/225541 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 316636 event pairs, 1453 based on Foata normal form. 167/21176 useless extension candidates. Maximal degree in co-relation 72409. Up to 1751 conditions per place. [2021-12-06 20:07:55,017 INFO L132 encePairwiseOnDemand]: 221/232 looper letters, 427 selfloop transitions, 102 changer transitions 0/726 dead transitions. [2021-12-06 20:07:55,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 726 transitions, 20298 flow [2021-12-06 20:07:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:07:55,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:07:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1039 transitions. [2021-12-06 20:07:55,018 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8956896551724138 [2021-12-06 20:07:55,019 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1039 transitions. [2021-12-06 20:07:55,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1039 transitions. [2021-12-06 20:07:55,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:07:55,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1039 transitions. [2021-12-06 20:07:55,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.8) internal successors, (1039), 5 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:55,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:55,020 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:55,020 INFO L186 Difference]: Start difference. First operand has 477 places, 682 transitions, 18332 flow. Second operand 5 states and 1039 transitions. [2021-12-06 20:07:55,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 726 transitions, 20298 flow [2021-12-06 20:07:56,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 726 transitions, 20162 flow, removed 17 selfloop flow, removed 2 redundant places. [2021-12-06 20:07:56,153 INFO L242 Difference]: Finished difference. Result has 482 places, 686 transitions, 18713 flow [2021-12-06 20:07:56,153 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=18204, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=18713, PETRI_PLACES=482, PETRI_TRANSITIONS=686} [2021-12-06 20:07:56,154 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 271 predicate places. [2021-12-06 20:07:56,154 INFO L470 AbstractCegarLoop]: Abstraction has has 482 places, 686 transitions, 18713 flow [2021-12-06 20:07:56,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:56,154 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:07:56,154 INFO L254 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] [2021-12-06 20:07:56,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-12-06 20:07:56,154 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:07:56,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:07:56,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1652032452, now seen corresponding path program 8 times [2021-12-06 20:07:56,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:07:56,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347519226] [2021-12-06 20:07:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:07:56,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:07:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:07:56,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:07:56,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:07:56,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347519226] [2021-12-06 20:07:56,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347519226] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:07:56,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:07:56,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:07:56,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053924883] [2021-12-06 20:07:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:07:56,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:07:56,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:07:56,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:07:56,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:07:56,226 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:07:56,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 686 transitions, 18713 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:07:56,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:07:56,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:07:56,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:01,858 INFO L129 PetriNetUnfolder]: 2867/24294 cut-off events. [2021-12-06 20:08:01,858 INFO L130 PetriNetUnfolder]: For 242213/243224 co-relation queries the response was YES. [2021-12-06 20:08:02,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77157 conditions, 24294 events. 2867/24294 cut-off events. For 242213/243224 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 352254 event pairs, 1521 based on Foata normal form. 183/23030 useless extension candidates. Maximal degree in co-relation 77018. Up to 1871 conditions per place. [2021-12-06 20:08:02,335 INFO L132 encePairwiseOnDemand]: 220/232 looper letters, 454 selfloop transitions, 101 changer transitions 0/752 dead transitions. [2021-12-06 20:08:02,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 752 transitions, 21704 flow [2021-12-06 20:08:02,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:08:02,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:08:02,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1038 transitions. [2021-12-06 20:08:02,337 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8948275862068965 [2021-12-06 20:08:02,337 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1038 transitions. [2021-12-06 20:08:02,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1038 transitions. [2021-12-06 20:08:02,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:02,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1038 transitions. [2021-12-06 20:08:02,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.6) internal successors, (1038), 5 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:02,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:02,339 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:02,339 INFO L186 Difference]: Start difference. First operand has 482 places, 686 transitions, 18713 flow. Second operand 5 states and 1038 transitions. [2021-12-06 20:08:02,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 752 transitions, 21704 flow [2021-12-06 20:08:03,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 752 transitions, 21618 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 20:08:03,674 INFO L242 Difference]: Finished difference. Result has 485 places, 697 transitions, 19306 flow [2021-12-06 20:08:03,675 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=18584, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=584, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=19306, PETRI_PLACES=485, PETRI_TRANSITIONS=697} [2021-12-06 20:08:03,675 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 274 predicate places. [2021-12-06 20:08:03,675 INFO L470 AbstractCegarLoop]: Abstraction has has 485 places, 697 transitions, 19306 flow [2021-12-06 20:08:03,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:03,675 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:03,676 INFO L254 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] [2021-12-06 20:08:03,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-12-06 20:08:03,676 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:08:03,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:03,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2095915362, now seen corresponding path program 9 times [2021-12-06 20:08:03,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:03,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918033171] [2021-12-06 20:08:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:03,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:03,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:03,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918033171] [2021-12-06 20:08:03,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918033171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:03,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:03,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:03,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319772336] [2021-12-06 20:08:03,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:03,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:08:03,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:03,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:08:03,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:08:03,724 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:08:03,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 697 transitions, 19306 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:03,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:03,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:08:03,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:09,457 INFO L129 PetriNetUnfolder]: 3053/25062 cut-off events. [2021-12-06 20:08:09,457 INFO L130 PetriNetUnfolder]: For 253892/255053 co-relation queries the response was YES. [2021-12-06 20:08:09,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80521 conditions, 25062 events. 3053/25062 cut-off events. For 253892/255053 co-relation queries the response was YES. Maximal size of possible extension queue 740. Compared 364360 event pairs, 1618 based on Foata normal form. 202/23782 useless extension candidates. Maximal degree in co-relation 80381. Up to 2091 conditions per place. [2021-12-06 20:08:09,964 INFO L132 encePairwiseOnDemand]: 218/232 looper letters, 425 selfloop transitions, 130 changer transitions 0/752 dead transitions. [2021-12-06 20:08:09,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 752 transitions, 21795 flow [2021-12-06 20:08:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:08:09,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:08:09,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1044 transitions. [2021-12-06 20:08:09,965 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-12-06 20:08:09,965 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1044 transitions. [2021-12-06 20:08:09,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1044 transitions. [2021-12-06 20:08:09,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:09,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1044 transitions. [2021-12-06 20:08:09,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.8) internal successors, (1044), 5 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:09,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:09,967 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:09,967 INFO L186 Difference]: Start difference. First operand has 485 places, 697 transitions, 19306 flow. Second operand 5 states and 1044 transitions. [2021-12-06 20:08:09,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 752 transitions, 21795 flow [2021-12-06 20:08:11,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 752 transitions, 21722 flow, removed 9 selfloop flow, removed 1 redundant places. [2021-12-06 20:08:11,401 INFO L242 Difference]: Finished difference. Result has 490 places, 708 transitions, 20070 flow [2021-12-06 20:08:11,402 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=19180, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=20070, PETRI_PLACES=490, PETRI_TRANSITIONS=708} [2021-12-06 20:08:11,402 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 279 predicate places. [2021-12-06 20:08:11,402 INFO L470 AbstractCegarLoop]: Abstraction has has 490 places, 708 transitions, 20070 flow [2021-12-06 20:08:11,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:11,403 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:11,403 INFO L254 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] [2021-12-06 20:08:11,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-12-06 20:08:11,403 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:08:11,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:11,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1533348330, now seen corresponding path program 10 times [2021-12-06 20:08:11,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:11,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594536294] [2021-12-06 20:08:11,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:11,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:11,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:11,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:11,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594536294] [2021-12-06 20:08:11,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594536294] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:11,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:11,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:11,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62531177] [2021-12-06 20:08:11,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:11,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:08:11,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:11,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:08:11,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:08:11,439 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:08:11,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 708 transitions, 20070 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:11,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:11,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:08:11,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:17,219 INFO L129 PetriNetUnfolder]: 2921/24105 cut-off events. [2021-12-06 20:08:17,220 INFO L130 PetriNetUnfolder]: For 255423/256501 co-relation queries the response was YES. [2021-12-06 20:08:17,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78599 conditions, 24105 events. 2921/24105 cut-off events. For 255423/256501 co-relation queries the response was YES. Maximal size of possible extension queue 721. Compared 347579 event pairs, 1537 based on Foata normal form. 184/22870 useless extension candidates. Maximal degree in co-relation 78457. Up to 1963 conditions per place. [2021-12-06 20:08:17,671 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 419 selfloop transitions, 138 changer transitions 0/754 dead transitions. [2021-12-06 20:08:17,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 754 transitions, 21846 flow [2021-12-06 20:08:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:17,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:17,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1253 transitions. [2021-12-06 20:08:17,672 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9001436781609196 [2021-12-06 20:08:17,673 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1253 transitions. [2021-12-06 20:08:17,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1253 transitions. [2021-12-06 20:08:17,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:17,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1253 transitions. [2021-12-06 20:08:17,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:17,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:17,674 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:17,674 INFO L186 Difference]: Start difference. First operand has 490 places, 708 transitions, 20070 flow. Second operand 6 states and 1253 transitions. [2021-12-06 20:08:17,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 754 transitions, 21846 flow [2021-12-06 20:08:19,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 754 transitions, 21649 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-06 20:08:19,117 INFO L242 Difference]: Finished difference. Result has 493 places, 708 transitions, 20175 flow [2021-12-06 20:08:19,118 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=19800, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=20175, PETRI_PLACES=493, PETRI_TRANSITIONS=708} [2021-12-06 20:08:19,118 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 282 predicate places. [2021-12-06 20:08:19,118 INFO L470 AbstractCegarLoop]: Abstraction has has 493 places, 708 transitions, 20175 flow [2021-12-06 20:08:19,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:19,119 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:19,119 INFO L254 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] [2021-12-06 20:08:19,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-12-06 20:08:19,119 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:08:19,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1448771346, now seen corresponding path program 11 times [2021-12-06 20:08:19,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:19,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576164927] [2021-12-06 20:08:19,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:19,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:19,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:19,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576164927] [2021-12-06 20:08:19,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576164927] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:19,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:19,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:19,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871133795] [2021-12-06 20:08:19,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:19,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:08:19,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:19,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:08:19,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:08:19,180 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:08:19,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 708 transitions, 20175 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:19,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:19,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:08:19,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:24,768 INFO L129 PetriNetUnfolder]: 2936/23054 cut-off events. [2021-12-06 20:08:24,769 INFO L130 PetriNetUnfolder]: For 270753/271919 co-relation queries the response was YES. [2021-12-06 20:08:25,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78722 conditions, 23054 events. 2936/23054 cut-off events. For 270753/271919 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 336289 event pairs, 1544 based on Foata normal form. 178/21883 useless extension candidates. Maximal degree in co-relation 78580. Up to 1933 conditions per place. [2021-12-06 20:08:25,317 INFO L132 encePairwiseOnDemand]: 217/232 looper letters, 391 selfloop transitions, 219 changer transitions 0/807 dead transitions. [2021-12-06 20:08:25,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 807 transitions, 23838 flow [2021-12-06 20:08:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:25,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1266 transitions. [2021-12-06 20:08:25,319 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9094827586206896 [2021-12-06 20:08:25,319 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1266 transitions. [2021-12-06 20:08:25,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1266 transitions. [2021-12-06 20:08:25,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:25,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1266 transitions. [2021-12-06 20:08:25,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:25,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:25,320 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 232.0) internal successors, (1624), 7 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:25,320 INFO L186 Difference]: Start difference. First operand has 493 places, 708 transitions, 20175 flow. Second operand 6 states and 1266 transitions. [2021-12-06 20:08:25,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 807 transitions, 23838 flow [2021-12-06 20:08:26,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 807 transitions, 23568 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-12-06 20:08:26,699 INFO L242 Difference]: Finished difference. Result has 497 places, 735 transitions, 21740 flow [2021-12-06 20:08:26,700 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=19888, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=21740, PETRI_PLACES=497, PETRI_TRANSITIONS=735} [2021-12-06 20:08:26,700 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 286 predicate places. [2021-12-06 20:08:26,700 INFO L470 AbstractCegarLoop]: Abstraction has has 497 places, 735 transitions, 21740 flow [2021-12-06 20:08:26,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:26,700 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:26,700 INFO L254 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] [2021-12-06 20:08:26,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-12-06 20:08:26,701 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:08:26,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:26,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1745828990, now seen corresponding path program 12 times [2021-12-06 20:08:26,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:26,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960471673] [2021-12-06 20:08:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:26,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:26,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:26,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:26,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960471673] [2021-12-06 20:08:26,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960471673] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:26,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:26,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:26,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494782742] [2021-12-06 20:08:26,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:26,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:08:26,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:26,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:08:26,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:08:26,766 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 232 [2021-12-06 20:08:26,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 735 transitions, 21740 flow. Second operand has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:26,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:26,767 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 232 [2021-12-06 20:08:26,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:33,031 INFO L129 PetriNetUnfolder]: 3242/26516 cut-off events. [2021-12-06 20:08:33,031 INFO L130 PetriNetUnfolder]: For 279818/281025 co-relation queries the response was YES. [2021-12-06 20:08:33,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86633 conditions, 26516 events. 3242/26516 cut-off events. For 279818/281025 co-relation queries the response was YES. Maximal size of possible extension queue 785. Compared 387781 event pairs, 1877 based on Foata normal form. 228/25123 useless extension candidates. Maximal degree in co-relation 86489. Up to 2235 conditions per place. [2021-12-06 20:08:33,691 INFO L132 encePairwiseOnDemand]: 222/232 looper letters, 516 selfloop transitions, 60 changer transitions 0/773 dead transitions. [2021-12-06 20:08:33,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 773 transitions, 23695 flow [2021-12-06 20:08:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:08:33,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 20:08:33,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1030 transitions. [2021-12-06 20:08:33,693 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8879310344827587 [2021-12-06 20:08:33,693 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1030 transitions. [2021-12-06 20:08:33,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1030 transitions. [2021-12-06 20:08:33,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:33,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1030 transitions. [2021-12-06 20:08:33,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:33,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:33,694 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:33,695 INFO L186 Difference]: Start difference. First operand has 497 places, 735 transitions, 21740 flow. Second operand 5 states and 1030 transitions. [2021-12-06 20:08:33,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 773 transitions, 23695 flow [2021-12-06 20:08:35,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 773 transitions, 23604 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-12-06 20:08:35,407 INFO L242 Difference]: Finished difference. Result has 502 places, 749 transitions, 22275 flow [2021-12-06 20:08:35,407 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=21463, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=22275, PETRI_PLACES=502, PETRI_TRANSITIONS=749} [2021-12-06 20:08:35,407 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 291 predicate places. [2021-12-06 20:08:35,407 INFO L470 AbstractCegarLoop]: Abstraction has has 502 places, 749 transitions, 22275 flow [2021-12-06 20:08:35,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:35,408 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:35,408 INFO L254 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] [2021-12-06 20:08:35,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-12-06 20:08:35,408 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:08:35,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:35,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1290684558, now seen corresponding path program 1 times [2021-12-06 20:08:35,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:35,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964611011] [2021-12-06 20:08:35,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:35,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:35,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:35,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964611011] [2021-12-06 20:08:35,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964611011] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:35,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:35,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:08:35,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860719990] [2021-12-06 20:08:35,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:35,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:08:35,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:35,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:08:35,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:08:35,446 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 232 [2021-12-06 20:08:35,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 749 transitions, 22275 flow. Second operand has 8 states, 8 states have (on average 198.75) internal successors, (1590), 8 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:35,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:35,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 232 [2021-12-06 20:08:35,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:40,760 INFO L129 PetriNetUnfolder]: 2141/19354 cut-off events. [2021-12-06 20:08:40,760 INFO L130 PetriNetUnfolder]: For 206163/223511 co-relation queries the response was YES. [2021-12-06 20:08:41,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61943 conditions, 19354 events. 2141/19354 cut-off events. For 206163/223511 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 280508 event pairs, 1186 based on Foata normal form. 331/18649 useless extension candidates. Maximal degree in co-relation 61797. Up to 1606 conditions per place. [2021-12-06 20:08:41,117 INFO L132 encePairwiseOnDemand]: 222/232 looper letters, 29 selfloop transitions, 7 changer transitions 148/775 dead transitions. [2021-12-06 20:08:41,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 775 transitions, 22464 flow [2021-12-06 20:08:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:08:41,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:08:41,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2208 transitions. [2021-12-06 20:08:41,119 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8652037617554859 [2021-12-06 20:08:41,119 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2208 transitions. [2021-12-06 20:08:41,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2208 transitions. [2021-12-06 20:08:41,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:41,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2208 transitions. [2021-12-06 20:08:41,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 200.72727272727272) internal successors, (2208), 11 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:41,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 232.0) internal successors, (2784), 12 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:41,122 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 232.0) internal successors, (2784), 12 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:41,122 INFO L186 Difference]: Start difference. First operand has 502 places, 749 transitions, 22275 flow. Second operand 11 states and 2208 transitions. [2021-12-06 20:08:41,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 775 transitions, 22464 flow [2021-12-06 20:08:42,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 775 transitions, 22354 flow, removed 44 selfloop flow, removed 1 redundant places. [2021-12-06 20:08:42,167 INFO L242 Difference]: Finished difference. Result has 520 places, 626 transitions, 17635 flow [2021-12-06 20:08:42,168 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=22165, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=742, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17635, PETRI_PLACES=520, PETRI_TRANSITIONS=626} [2021-12-06 20:08:42,168 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 309 predicate places. [2021-12-06 20:08:42,168 INFO L470 AbstractCegarLoop]: Abstraction has has 520 places, 626 transitions, 17635 flow [2021-12-06 20:08:42,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 198.75) internal successors, (1590), 8 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:42,168 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:42,168 INFO L254 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] [2021-12-06 20:08:42,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-12-06 20:08:42,168 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:08:42,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:42,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2136258269, now seen corresponding path program 1 times [2021-12-06 20:08:42,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:42,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402205480] [2021-12-06 20:08:42,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:42,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:42,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:42,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402205480] [2021-12-06 20:08:42,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402205480] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:42,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:42,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:08:42,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714461719] [2021-12-06 20:08:42,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:42,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:08:42,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:42,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:08:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:08:42,234 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 232 [2021-12-06 20:08:42,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 626 transitions, 17635 flow. Second operand has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:42,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:42,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 232 [2021-12-06 20:08:42,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:55,064 INFO L129 PetriNetUnfolder]: 13184/38705 cut-off events. [2021-12-06 20:08:55,064 INFO L130 PetriNetUnfolder]: For 229116/238982 co-relation queries the response was YES. [2021-12-06 20:08:55,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122963 conditions, 38705 events. 13184/38705 cut-off events. For 229116/238982 co-relation queries the response was YES. Maximal size of possible extension queue 3780. Compared 526288 event pairs, 8740 based on Foata normal form. 40/35752 useless extension candidates. Maximal degree in co-relation 122808. Up to 19504 conditions per place. [2021-12-06 20:08:56,065 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 110 selfloop transitions, 34 changer transitions 19/745 dead transitions. [2021-12-06 20:08:56,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 745 transitions, 18686 flow [2021-12-06 20:08:56,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-06 20:08:56,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-06 20:08:56,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4021 transitions. [2021-12-06 20:08:56,067 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8253284072249589 [2021-12-06 20:08:56,068 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4021 transitions. [2021-12-06 20:08:56,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4021 transitions. [2021-12-06 20:08:56,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:56,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4021 transitions. [2021-12-06 20:08:56,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 191.47619047619048) internal successors, (4021), 21 states have internal predecessors, (4021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:56,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 232.0) internal successors, (5104), 22 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:56,072 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 232.0) internal successors, (5104), 22 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:56,072 INFO L186 Difference]: Start difference. First operand has 520 places, 626 transitions, 17635 flow. Second operand 21 states and 4021 transitions. [2021-12-06 20:08:56,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 745 transitions, 18686 flow [2021-12-06 20:08:58,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 745 transitions, 17328 flow, removed 243 selfloop flow, removed 32 redundant places. [2021-12-06 20:08:58,498 INFO L242 Difference]: Finished difference. Result has 508 places, 660 transitions, 16762 flow [2021-12-06 20:08:58,498 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=16365, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=16762, PETRI_PLACES=508, PETRI_TRANSITIONS=660} [2021-12-06 20:08:58,498 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 297 predicate places. [2021-12-06 20:08:58,498 INFO L470 AbstractCegarLoop]: Abstraction has has 508 places, 660 transitions, 16762 flow [2021-12-06 20:08:58,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:58,499 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:58,499 INFO L254 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] [2021-12-06 20:08:58,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-12-06 20:08:58,499 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:08:58,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:58,499 INFO L85 PathProgramCache]: Analyzing trace with hash -763215259, now seen corresponding path program 2 times [2021-12-06 20:08:58,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:58,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993583265] [2021-12-06 20:08:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:58,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:58,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:58,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:58,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993583265] [2021-12-06 20:08:58,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993583265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:58,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:58,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:08:58,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596242934] [2021-12-06 20:08:58,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:58,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:08:58,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:58,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:08:58,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:08:58,562 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 232 [2021-12-06 20:08:58,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 660 transitions, 16762 flow. Second operand has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:58,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:58,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 232 [2021-12-06 20:08:58,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:11,538 INFO L129 PetriNetUnfolder]: 13673/39481 cut-off events. [2021-12-06 20:09:11,538 INFO L130 PetriNetUnfolder]: For 217253/227685 co-relation queries the response was YES. [2021-12-06 20:09:12,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139015 conditions, 39481 events. 13673/39481 cut-off events. For 217253/227685 co-relation queries the response was YES. Maximal size of possible extension queue 3840. Compared 541639 event pairs, 9139 based on Foata normal form. 56/36597 useless extension candidates. Maximal degree in co-relation 138872. Up to 20429 conditions per place. [2021-12-06 20:09:12,536 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 140 selfloop transitions, 68 changer transitions 43/833 dead transitions. [2021-12-06 20:09:12,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 833 transitions, 18423 flow [2021-12-06 20:09:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-06 20:09:12,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-12-06 20:09:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 7417 transitions. [2021-12-06 20:09:12,539 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8197391688771 [2021-12-06 20:09:12,539 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 7417 transitions. [2021-12-06 20:09:12,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 7417 transitions. [2021-12-06 20:09:12,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:12,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 7417 transitions. [2021-12-06 20:09:12,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 190.17948717948718) internal successors, (7417), 39 states have internal predecessors, (7417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:12,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 232.0) internal successors, (9280), 40 states have internal predecessors, (9280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:12,549 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 232.0) internal successors, (9280), 40 states have internal predecessors, (9280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:12,549 INFO L186 Difference]: Start difference. First operand has 508 places, 660 transitions, 16762 flow. Second operand 39 states and 7417 transitions. [2021-12-06 20:09:12,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 833 transitions, 18423 flow [2021-12-06 20:09:14,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 833 transitions, 18242 flow, removed 77 selfloop flow, removed 4 redundant places. [2021-12-06 20:09:14,546 INFO L242 Difference]: Finished difference. Result has 574 places, 716 transitions, 17475 flow [2021-12-06 20:09:14,547 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=16587, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=17475, PETRI_PLACES=574, PETRI_TRANSITIONS=716} [2021-12-06 20:09:14,547 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 363 predicate places. [2021-12-06 20:09:14,547 INFO L470 AbstractCegarLoop]: Abstraction has has 574 places, 716 transitions, 17475 flow [2021-12-06 20:09:14,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:14,547 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:14,547 INFO L254 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] [2021-12-06 20:09:14,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-12-06 20:09:14,548 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:09:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1179918555, now seen corresponding path program 3 times [2021-12-06 20:09:14,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:14,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334529302] [2021-12-06 20:09:14,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:14,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:09:14,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:14,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334529302] [2021-12-06 20:09:14,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334529302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:14,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:14,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:09:14,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907780082] [2021-12-06 20:09:14,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:14,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:09:14,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:14,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:09:14,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:09:14,616 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 232 [2021-12-06 20:09:14,616 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 716 transitions, 17475 flow. Second operand has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:14,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:14,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 232 [2021-12-06 20:09:14,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:29,903 INFO L129 PetriNetUnfolder]: 14862/42135 cut-off events. [2021-12-06 20:09:29,903 INFO L130 PetriNetUnfolder]: For 314179/323959 co-relation queries the response was YES. [2021-12-06 20:09:31,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174118 conditions, 42135 events. 14862/42135 cut-off events. For 314179/323959 co-relation queries the response was YES. Maximal size of possible extension queue 4053. Compared 579369 event pairs, 9542 based on Foata normal form. 32/38933 useless extension candidates. Maximal degree in co-relation 173944. Up to 21856 conditions per place. [2021-12-06 20:09:31,205 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 151 selfloop transitions, 73 changer transitions 19/825 dead transitions. [2021-12-06 20:09:31,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 825 transitions, 19242 flow [2021-12-06 20:09:31,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-06 20:09:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-12-06 20:09:31,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4394 transitions. [2021-12-06 20:09:31,207 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8234632683658171 [2021-12-06 20:09:31,207 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4394 transitions. [2021-12-06 20:09:31,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4394 transitions. [2021-12-06 20:09:31,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:31,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4394 transitions. [2021-12-06 20:09:31,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 191.04347826086956) internal successors, (4394), 23 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:31,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 232.0) internal successors, (5568), 24 states have internal predecessors, (5568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:31,213 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 232.0) internal successors, (5568), 24 states have internal predecessors, (5568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:31,213 INFO L186 Difference]: Start difference. First operand has 574 places, 716 transitions, 17475 flow. Second operand 23 states and 4394 transitions. [2021-12-06 20:09:31,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 825 transitions, 19242 flow [2021-12-06 20:09:35,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 592 places, 825 transitions, 18892 flow, removed 175 selfloop flow, removed 2 redundant places. [2021-12-06 20:09:35,506 INFO L242 Difference]: Finished difference. Result has 607 places, 755 transitions, 18087 flow [2021-12-06 20:09:35,507 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=17143, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=716, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=18087, PETRI_PLACES=607, PETRI_TRANSITIONS=755} [2021-12-06 20:09:35,507 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 396 predicate places. [2021-12-06 20:09:35,507 INFO L470 AbstractCegarLoop]: Abstraction has has 607 places, 755 transitions, 18087 flow [2021-12-06 20:09:35,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:35,507 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:35,507 INFO L254 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] [2021-12-06 20:09:35,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-12-06 20:09:35,508 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:09:35,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash 212631977, now seen corresponding path program 4 times [2021-12-06 20:09:35,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:35,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362040851] [2021-12-06 20:09:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:35,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:09:35,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:35,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362040851] [2021-12-06 20:09:35,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362040851] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:35,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:35,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:09:35,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356305085] [2021-12-06 20:09:35,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:35,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:09:35,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:35,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:09:35,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:09:35,570 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 232 [2021-12-06 20:09:35,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 755 transitions, 18087 flow. Second operand has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:35,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:35,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 232 [2021-12-06 20:09:35,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:53,160 INFO L129 PetriNetUnfolder]: 16424/45947 cut-off events. [2021-12-06 20:09:53,160 INFO L130 PetriNetUnfolder]: For 402870/412678 co-relation queries the response was YES. [2021-12-06 20:09:54,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201142 conditions, 45947 events. 16424/45947 cut-off events. For 402870/412678 co-relation queries the response was YES. Maximal size of possible extension queue 4321. Compared 633460 event pairs, 9168 based on Foata normal form. 26/42494 useless extension candidates. Maximal degree in co-relation 200954. Up to 20324 conditions per place. [2021-12-06 20:09:54,816 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 212 selfloop transitions, 82 changer transitions 35/911 dead transitions. [2021-12-06 20:09:54,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 911 transitions, 20780 flow [2021-12-06 20:09:54,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-06 20:09:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-12-06 20:09:54,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 6285 transitions. [2021-12-06 20:09:54,820 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8209247648902821 [2021-12-06 20:09:54,820 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 6285 transitions. [2021-12-06 20:09:54,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 6285 transitions. [2021-12-06 20:09:54,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:54,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 6285 transitions. [2021-12-06 20:09:54,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 190.45454545454547) internal successors, (6285), 33 states have internal predecessors, (6285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:54,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 232.0) internal successors, (7888), 34 states have internal predecessors, (7888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:54,828 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 232.0) internal successors, (7888), 34 states have internal predecessors, (7888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:54,828 INFO L186 Difference]: Start difference. First operand has 607 places, 755 transitions, 18087 flow. Second operand 33 states and 6285 transitions. [2021-12-06 20:09:54,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 911 transitions, 20780 flow [2021-12-06 20:10:02,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 911 transitions, 20138 flow, removed 321 selfloop flow, removed 2 redundant places. [2021-12-06 20:10:02,710 INFO L242 Difference]: Finished difference. Result has 662 places, 818 transitions, 19063 flow [2021-12-06 20:10:02,711 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=17659, PETRI_DIFFERENCE_MINUEND_PLACES=603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=755, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=715, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=19063, PETRI_PLACES=662, PETRI_TRANSITIONS=818} [2021-12-06 20:10:02,711 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 451 predicate places. [2021-12-06 20:10:02,711 INFO L470 AbstractCegarLoop]: Abstraction has has 662 places, 818 transitions, 19063 flow [2021-12-06 20:10:02,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:02,711 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:10:02,712 INFO L254 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] [2021-12-06 20:10:02,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-12-06 20:10:02,712 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:10:02,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:10:02,712 INFO L85 PathProgramCache]: Analyzing trace with hash 959311413, now seen corresponding path program 5 times [2021-12-06 20:10:02,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:10:02,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219193183] [2021-12-06 20:10:02,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:10:02,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:10:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:10:02,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:10:02,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219193183] [2021-12-06 20:10:02,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219193183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:10:02,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:10:02,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:10:02,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588277966] [2021-12-06 20:10:02,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:10:02,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:10:02,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:10:02,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:10:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:10:02,771 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 232 [2021-12-06 20:10:02,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 818 transitions, 19063 flow. Second operand has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:02,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:10:02,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 232 [2021-12-06 20:10:02,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:22,820 INFO L129 PetriNetUnfolder]: 16984/47716 cut-off events. [2021-12-06 20:10:22,820 INFO L130 PetriNetUnfolder]: For 461857/471725 co-relation queries the response was YES. [2021-12-06 20:10:24,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216315 conditions, 47716 events. 16984/47716 cut-off events. For 461857/471725 co-relation queries the response was YES. Maximal size of possible extension queue 4431. Compared 664260 event pairs, 8259 based on Foata normal form. 26/44301 useless extension candidates. Maximal degree in co-relation 216101. Up to 18615 conditions per place. [2021-12-06 20:10:24,760 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 267 selfloop transitions, 160 changer transitions 40/1049 dead transitions. [2021-12-06 20:10:24,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 698 places, 1049 transitions, 22644 flow [2021-12-06 20:10:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-06 20:10:24,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-12-06 20:10:24,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 7420 transitions. [2021-12-06 20:10:24,764 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8200707338638373 [2021-12-06 20:10:24,764 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 7420 transitions. [2021-12-06 20:10:24,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 7420 transitions. [2021-12-06 20:10:24,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:24,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 7420 transitions. [2021-12-06 20:10:24,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 190.25641025641025) internal successors, (7420), 39 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:24,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 232.0) internal successors, (9280), 40 states have internal predecessors, (9280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:24,869 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 232.0) internal successors, (9280), 40 states have internal predecessors, (9280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:24,869 INFO L186 Difference]: Start difference. First operand has 662 places, 818 transitions, 19063 flow. Second operand 39 states and 7420 transitions. [2021-12-06 20:10:24,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 698 places, 1049 transitions, 22644 flow [2021-12-06 20:10:33,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 696 places, 1049 transitions, 21738 flow, removed 453 selfloop flow, removed 2 redundant places. [2021-12-06 20:10:33,622 INFO L242 Difference]: Finished difference. Result has 728 places, 869 transitions, 19832 flow [2021-12-06 20:10:33,623 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=18447, PETRI_DIFFERENCE_MINUEND_PLACES=658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=19832, PETRI_PLACES=728, PETRI_TRANSITIONS=869} [2021-12-06 20:10:33,623 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 517 predicate places. [2021-12-06 20:10:33,623 INFO L470 AbstractCegarLoop]: Abstraction has has 728 places, 869 transitions, 19832 flow [2021-12-06 20:10:33,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:33,623 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:10:33,623 INFO L254 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] [2021-12-06 20:10:33,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-12-06 20:10:33,624 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:10:33,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:10:33,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1855229507, now seen corresponding path program 6 times [2021-12-06 20:10:33,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:10:33,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620284810] [2021-12-06 20:10:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:10:33,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:10:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:10:33,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:10:33,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620284810] [2021-12-06 20:10:33,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620284810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:10:33,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:10:33,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:10:33,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301194850] [2021-12-06 20:10:33,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:10:33,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:10:33,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:10:33,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:10:33,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:10:33,690 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 232 [2021-12-06 20:10:33,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 728 places, 869 transitions, 19832 flow. Second operand has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:33,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:10:33,691 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 232 [2021-12-06 20:10:33,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:56,333 INFO L129 PetriNetUnfolder]: 18210/50756 cut-off events. [2021-12-06 20:10:56,333 INFO L130 PetriNetUnfolder]: For 529224/539092 co-relation queries the response was YES. [2021-12-06 20:10:58,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243287 conditions, 50756 events. 18210/50756 cut-off events. For 529224/539092 co-relation queries the response was YES. Maximal size of possible extension queue 4655. Compared 709750 event pairs, 9638 based on Foata normal form. 63/47009 useless extension candidates. Maximal degree in co-relation 243042. Up to 23226 conditions per place. [2021-12-06 20:10:58,900 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 247 selfloop transitions, 158 changer transitions 38/1025 dead transitions. [2021-12-06 20:10:58,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 761 places, 1025 transitions, 23076 flow [2021-12-06 20:10:58,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-06 20:10:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-12-06 20:10:58,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6845 transitions. [2021-12-06 20:10:58,904 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8195641762452107 [2021-12-06 20:10:58,904 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6845 transitions. [2021-12-06 20:10:58,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6845 transitions. [2021-12-06 20:10:58,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:58,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6845 transitions. [2021-12-06 20:10:58,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 190.13888888888889) internal successors, (6845), 36 states have internal predecessors, (6845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:58,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 232.0) internal successors, (8584), 37 states have internal predecessors, (8584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:58,913 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 232.0) internal successors, (8584), 37 states have internal predecessors, (8584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:58,913 INFO L186 Difference]: Start difference. First operand has 728 places, 869 transitions, 19832 flow. Second operand 36 states and 6845 transitions. [2021-12-06 20:10:58,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 761 places, 1025 transitions, 23076 flow [2021-12-06 20:11:07,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 758 places, 1025 transitions, 22810 flow, removed 129 selfloop flow, removed 3 redundant places. [2021-12-06 20:11:07,263 INFO L242 Difference]: Finished difference. Result has 785 places, 925 transitions, 21136 flow [2021-12-06 20:11:07,263 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=19570, PETRI_DIFFERENCE_MINUEND_PLACES=723, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=751, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=21136, PETRI_PLACES=785, PETRI_TRANSITIONS=925} [2021-12-06 20:11:07,264 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 574 predicate places. [2021-12-06 20:11:07,264 INFO L470 AbstractCegarLoop]: Abstraction has has 785 places, 925 transitions, 21136 flow [2021-12-06 20:11:07,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:11:07,264 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:11:07,264 INFO L254 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] [2021-12-06 20:11:07,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-12-06 20:11:07,264 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:11:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:11:07,265 INFO L85 PathProgramCache]: Analyzing trace with hash -967299577, now seen corresponding path program 7 times [2021-12-06 20:11:07,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:11:07,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123896920] [2021-12-06 20:11:07,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:11:07,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:11:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:11:07,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:11:07,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:11:07,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123896920] [2021-12-06 20:11:07,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123896920] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:11:07,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:11:07,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:11:07,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889753459] [2021-12-06 20:11:07,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:11:07,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:11:07,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:11:07,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:11:07,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:11:07,334 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 232 [2021-12-06 20:11:07,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 785 places, 925 transitions, 21136 flow. Second operand has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:11:07,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:11:07,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 232 [2021-12-06 20:11:07,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:11:32,417 INFO L129 PetriNetUnfolder]: 18804/52526 cut-off events. [2021-12-06 20:11:32,417 INFO L130 PetriNetUnfolder]: For 675677/685572 co-relation queries the response was YES. [2021-12-06 20:11:34,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 271278 conditions, 52526 events. 18804/52526 cut-off events. For 675677/685572 co-relation queries the response was YES. Maximal size of possible extension queue 4769. Compared 737625 event pairs, 10066 based on Foata normal form. 42/48583 useless extension candidates. Maximal degree in co-relation 271008. Up to 23972 conditions per place. [2021-12-06 20:11:35,195 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 301 selfloop transitions, 135 changer transitions 18/1036 dead transitions. [2021-12-06 20:11:35,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 804 places, 1036 transitions, 23847 flow [2021-12-06 20:11:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-06 20:11:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-12-06 20:11:35,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4209 transitions. [2021-12-06 20:11:35,197 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8246473354231975 [2021-12-06 20:11:35,197 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4209 transitions. [2021-12-06 20:11:35,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4209 transitions. [2021-12-06 20:11:35,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:11:35,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4209 transitions. [2021-12-06 20:11:35,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 191.3181818181818) internal successors, (4209), 22 states have internal predecessors, (4209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:11:35,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 232.0) internal successors, (5336), 23 states have internal predecessors, (5336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:11:35,202 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 232.0) internal successors, (5336), 23 states have internal predecessors, (5336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:11:35,202 INFO L186 Difference]: Start difference. First operand has 785 places, 925 transitions, 21136 flow. Second operand 22 states and 4209 transitions. [2021-12-06 20:11:35,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 804 places, 1036 transitions, 23847 flow [2021-12-06 20:11:48,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 801 places, 1036 transitions, 23281 flow, removed 262 selfloop flow, removed 3 redundant places. [2021-12-06 20:11:48,131 INFO L242 Difference]: Finished difference. Result has 816 places, 969 transitions, 22124 flow [2021-12-06 20:11:48,132 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=20613, PETRI_DIFFERENCE_MINUEND_PLACES=780, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=925, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=817, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=22124, PETRI_PLACES=816, PETRI_TRANSITIONS=969} [2021-12-06 20:11:48,132 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 605 predicate places. [2021-12-06 20:11:48,132 INFO L470 AbstractCegarLoop]: Abstraction has has 816 places, 969 transitions, 22124 flow [2021-12-06 20:11:48,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:11:48,132 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:11:48,132 INFO L254 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] [2021-12-06 20:11:48,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-12-06 20:11:48,132 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:11:48,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:11:48,133 INFO L85 PathProgramCache]: Analyzing trace with hash 2116507369, now seen corresponding path program 8 times [2021-12-06 20:11:48,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:11:48,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822618302] [2021-12-06 20:11:48,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:11:48,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:11:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:11:48,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:11:48,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:11:48,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822618302] [2021-12-06 20:11:48,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822618302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:11:48,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:11:48,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:11:48,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165097356] [2021-12-06 20:11:48,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:11:48,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:11:48,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:11:48,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:11:48,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:11:48,195 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 232 [2021-12-06 20:11:48,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 816 places, 969 transitions, 22124 flow. Second operand has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:11:48,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:11:48,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 232 [2021-12-06 20:11:48,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:12:15,401 INFO L129 PetriNetUnfolder]: 19106/53678 cut-off events. [2021-12-06 20:12:15,401 INFO L130 PetriNetUnfolder]: For 747505/757439 co-relation queries the response was YES. [2021-12-06 20:12:18,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285883 conditions, 53678 events. 19106/53678 cut-off events. For 747505/757439 co-relation queries the response was YES. Maximal size of possible extension queue 4841. Compared 759377 event pairs, 9800 based on Foata normal form. 132/49751 useless extension candidates. Maximal degree in co-relation 285600. Up to 24318 conditions per place. [2021-12-06 20:12:18,537 INFO L132 encePairwiseOnDemand]: 215/232 looper letters, 292 selfloop transitions, 188 changer transitions 16/1078 dead transitions. [2021-12-06 20:12:18,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 834 places, 1078 transitions, 25252 flow [2021-12-06 20:12:18,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-06 20:12:18,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-06 20:12:18,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4014 transitions. [2021-12-06 20:12:18,541 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8238916256157636 [2021-12-06 20:12:18,541 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4014 transitions. [2021-12-06 20:12:18,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4014 transitions. [2021-12-06 20:12:18,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:12:18,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4014 transitions. [2021-12-06 20:12:18,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 191.14285714285714) internal successors, (4014), 21 states have internal predecessors, (4014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:12:18,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 232.0) internal successors, (5104), 22 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:12:18,548 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 232.0) internal successors, (5104), 22 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:12:18,548 INFO L186 Difference]: Start difference. First operand has 816 places, 969 transitions, 22124 flow. Second operand 21 states and 4014 transitions. [2021-12-06 20:12:18,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 834 places, 1078 transitions, 25252 flow [2021-12-06 20:12:36,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 832 places, 1078 transitions, 24450 flow, removed 401 selfloop flow, removed 2 redundant places. [2021-12-06 20:12:36,261 INFO L242 Difference]: Finished difference. Result has 843 places, 999 transitions, 22687 flow [2021-12-06 20:12:36,262 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=21622, PETRI_DIFFERENCE_MINUEND_PLACES=812, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=804, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=22687, PETRI_PLACES=843, PETRI_TRANSITIONS=999} [2021-12-06 20:12:36,262 INFO L334 CegarLoopForPetriNet]: 211 programPoint places, 632 predicate places. [2021-12-06 20:12:36,262 INFO L470 AbstractCegarLoop]: Abstraction has has 843 places, 999 transitions, 22687 flow [2021-12-06 20:12:36,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:12:36,262 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:12:36,262 INFO L254 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] [2021-12-06 20:12:36,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-12-06 20:12:36,263 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-06 20:12:36,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:12:36,263 INFO L85 PathProgramCache]: Analyzing trace with hash -684936371, now seen corresponding path program 9 times [2021-12-06 20:12:36,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:12:36,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894185480] [2021-12-06 20:12:36,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:36,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:12:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:36,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:12:36,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:12:36,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894185480] [2021-12-06 20:12:36,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894185480] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:12:36,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:12:36,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:12:36,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020380702] [2021-12-06 20:12:36,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:12:36,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:12:36,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:12:36,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:12:36,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:12:36,328 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 232 [2021-12-06 20:12:36,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 999 transitions, 22687 flow. Second operand has 12 states, 12 states have (on average 187.5) internal successors, (2250), 12 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:12:36,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:12:36,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 232 [2021-12-06 20:12:36,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand