./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ace826ce717f8420bd44e3ebb10a0f5689c8f1d5dcaf8399a3f9b8d8dda146f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:56:54,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:56:54,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:56:54,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:56:54,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:56:54,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:56:54,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:56:54,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:56:54,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:56:54,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:56:54,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:56:54,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:56:54,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:56:54,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:56:54,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:56:54,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:56:54,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:56:54,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:56:54,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:56:54,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:56:54,676 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:56:54,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:56:54,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:56:54,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:56:54,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:56:54,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:56:54,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:56:54,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:56:54,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:56:54,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:56:54,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:56:54,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:56:54,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:56:54,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:56:54,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:56:54,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:56:54,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:56:54,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:56:54,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:56:54,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:56:54,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:56:54,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:56:54,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:56:54,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:56:54,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:56:54,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:56:54,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:56:54,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:56:54,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:56:54,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:56:54,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:56:54,720 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:56:54,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:56:54,721 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:56:54,721 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:56:54,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:56:54,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:56:54,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:56:54,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:56:54,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:56:54,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:56:54,722 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:56:54,722 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:56:54,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:56:54,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:56:54,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:56:54,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:56:54,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:56:54,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:56:54,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:56:54,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:56:54,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:56:54,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:56:54,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:56:54,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:56:54,729 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:56:54,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:56:54,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:56:54,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ace826ce717f8420bd44e3ebb10a0f5689c8f1d5dcaf8399a3f9b8d8dda146f [2022-04-18 15:56:54,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:56:54,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:56:54,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:56:54,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:56:54,951 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:56:54,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2022-04-18 15:56:55,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6922d74c9/e08a8ad99c7a4d9b827bacfd25386130/FLAG063107bd9 [2022-04-18 15:56:55,438 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:56:55,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2022-04-18 15:56:55,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6922d74c9/e08a8ad99c7a4d9b827bacfd25386130/FLAG063107bd9 [2022-04-18 15:56:55,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6922d74c9/e08a8ad99c7a4d9b827bacfd25386130 [2022-04-18 15:56:55,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:56:55,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:56:55,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:56:55,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:56:55,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:56:55,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35306c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55, skipping insertion in model container [2022-04-18 15:56:55,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:56:55,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:56:55,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i[30438,30451] [2022-04-18 15:56:55,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:56:55,699 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:56:55,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i[30438,30451] [2022-04-18 15:56:55,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:56:55,800 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:56:55,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55 WrapperNode [2022-04-18 15:56:55,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:56:55,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:56:55,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:56:55,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:56:55,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,852 INFO L137 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 135 [2022-04-18 15:56:55,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:56:55,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:56:55,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:56:55,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:56:55,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:56:55,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:56:55,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:56:55,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:56:55,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (1/1) ... [2022-04-18 15:56:55,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:56:55,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:56:55,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 15:56:55,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 15:56:55,954 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-04-18 15:56:55,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-04-18 15:56:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 15:56:55,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 15:56:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:56:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:56:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:56:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:56:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:56:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:56:55,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:56:55,957 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 15:56:56,074 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:56:56,076 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:56:56,226 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:56:56,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:56:56,324 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 15:56:56,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:56:56 BoogieIcfgContainer [2022-04-18 15:56:56,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:56:56,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:56:56,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:56:56,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:56:56,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:56:55" (1/3) ... [2022-04-18 15:56:56,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e85f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:56:56, skipping insertion in model container [2022-04-18 15:56:56,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:55" (2/3) ... [2022-04-18 15:56:56,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e85f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:56:56, skipping insertion in model container [2022-04-18 15:56:56,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:56:56" (3/3) ... [2022-04-18 15:56:56,331 INFO L111 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2022-04-18 15:56:56,341 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:56:56,342 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:56:56,342 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-04-18 15:56:56,342 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:56:56,376 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 15:56:56,410 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:56:56,415 INFO L340 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 [2022-04-18 15:56:56,416 INFO L341 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-04-18 15:56:56,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 110 transitions, 230 flow [2022-04-18 15:56:56,455 INFO L129 PetriNetUnfolder]: 7/120 cut-off events. [2022-04-18 15:56:56,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:56:56,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 120 events. 7/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 189 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2022-04-18 15:56:56,462 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 110 transitions, 230 flow [2022-04-18 15:56:56,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 109 transitions, 226 flow [2022-04-18 15:56:56,473 INFO L129 PetriNetUnfolder]: 2/29 cut-off events. [2022-04-18 15:56:56,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:56:56,474 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:56,474 INFO L255 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] [2022-04-18 15:56:56,475 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 15:56:56,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:56,479 INFO L85 PathProgramCache]: Analyzing trace with hash 536304118, now seen corresponding path program 1 times [2022-04-18 15:56:56,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:56,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526801790] [2022-04-18 15:56:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:56,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:56,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:56,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526801790] [2022-04-18 15:56:56,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526801790] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:56,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:56,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 15:56:56,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251556394] [2022-04-18 15:56:56,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:56,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 15:56:56,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:56,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 15:56:56,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 15:56:56,683 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 110 [2022-04-18 15:56:56,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 226 flow. Second operand has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:56,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 110 [2022-04-18 15:56:56,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:56,737 INFO L129 PetriNetUnfolder]: 11/123 cut-off events. [2022-04-18 15:56:56,738 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 15:56:56,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 123 events. 11/123 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 190 event pairs, 4 based on Foata normal form. 25/128 useless extension candidates. Maximal degree in co-relation 126. Up to 22 conditions per place. [2022-04-18 15:56:56,743 INFO L132 encePairwiseOnDemand]: 95/110 looper letters, 6 selfloop transitions, 0 changer transitions 0/84 dead transitions. [2022-04-18 15:56:56,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 84 transitions, 188 flow [2022-04-18 15:56:56,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 15:56:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 15:56:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 197 transitions. [2022-04-18 15:56:56,755 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8954545454545455 [2022-04-18 15:56:56,755 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 197 transitions. [2022-04-18 15:56:56,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 197 transitions. [2022-04-18 15:56:56,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:56,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 197 transitions. [2022-04-18 15:56:56,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,771 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,772 INFO L186 Difference]: Start difference. First operand has 109 places, 109 transitions, 226 flow. Second operand 2 states and 197 transitions. [2022-04-18 15:56:56,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 84 transitions, 188 flow [2022-04-18 15:56:56,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 84 transitions, 187 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:56:56,777 INFO L242 Difference]: Finished difference. Result has 88 places, 84 transitions, 175 flow [2022-04-18 15:56:56,778 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=175, PETRI_PLACES=88, PETRI_TRANSITIONS=84} [2022-04-18 15:56:56,781 INFO L335 CegarLoopForPetriNet]: 109 programPoint places, -21 predicate places. [2022-04-18 15:56:56,781 INFO L478 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 175 flow [2022-04-18 15:56:56,781 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,781 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:56,781 INFO L255 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] [2022-04-18 15:56:56,782 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:56:56,782 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 15:56:56,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:56,782 INFO L85 PathProgramCache]: Analyzing trace with hash -7801095, now seen corresponding path program 1 times [2022-04-18 15:56:56,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:56,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325451541] [2022-04-18 15:56:56,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:56,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:56,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:56,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325451541] [2022-04-18 15:56:56,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325451541] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:56,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:56,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:56:56,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78011857] [2022-04-18 15:56:56,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:56,832 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:56:56,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:56,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:56:56,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:56:56,833 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2022-04-18 15:56:56,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:56,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2022-04-18 15:56:56,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:56,955 INFO L129 PetriNetUnfolder]: 72/390 cut-off events. [2022-04-18 15:56:56,955 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 15:56:56,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 390 events. 72/390 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1604 event pairs, 13 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 550. Up to 90 conditions per place. [2022-04-18 15:56:56,963 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 20 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2022-04-18 15:56:56,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 93 transitions, 244 flow [2022-04-18 15:56:56,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:56:56,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:56:56,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2022-04-18 15:56:56,968 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.796969696969697 [2022-04-18 15:56:56,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2022-04-18 15:56:56,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2022-04-18 15:56:56,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:56,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2022-04-18 15:56:56,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,972 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,972 INFO L186 Difference]: Start difference. First operand has 88 places, 84 transitions, 175 flow. Second operand 3 states and 263 transitions. [2022-04-18 15:56:56,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 93 transitions, 244 flow [2022-04-18 15:56:56,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 93 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:56:56,974 INFO L242 Difference]: Finished difference. Result has 91 places, 86 transitions, 203 flow [2022-04-18 15:56:56,975 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=91, PETRI_TRANSITIONS=86} [2022-04-18 15:56:56,975 INFO L335 CegarLoopForPetriNet]: 109 programPoint places, -18 predicate places. [2022-04-18 15:56:56,976 INFO L478 AbstractCegarLoop]: Abstraction has has 91 places, 86 transitions, 203 flow [2022-04-18 15:56:56,976 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:56,976 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:56,976 INFO L255 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] [2022-04-18 15:56:56,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:56:56,977 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 15:56:56,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:56,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1093098459, now seen corresponding path program 1 times [2022-04-18 15:56:56,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:56,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762221435] [2022-04-18 15:56:56,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:56,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:57,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:57,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762221435] [2022-04-18 15:56:57,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762221435] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:57,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:57,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:56:57,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039124979] [2022-04-18 15:56:57,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:57,055 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:56:57,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:57,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:56:57,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:56:57,058 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2022-04-18 15:56:57,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 86 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:57,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2022-04-18 15:56:57,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:57,146 INFO L129 PetriNetUnfolder]: 126/695 cut-off events. [2022-04-18 15:56:57,146 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-04-18 15:56:57,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 695 events. 126/695 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3704 event pairs, 30 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 1046. Up to 137 conditions per place. [2022-04-18 15:56:57,151 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 20 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2022-04-18 15:56:57,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 95 transitions, 272 flow [2022-04-18 15:56:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:56:57,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:56:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2022-04-18 15:56:57,152 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.796969696969697 [2022-04-18 15:56:57,153 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2022-04-18 15:56:57,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2022-04-18 15:56:57,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:57,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2022-04-18 15:56:57,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,155 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,155 INFO L186 Difference]: Start difference. First operand has 91 places, 86 transitions, 203 flow. Second operand 3 states and 263 transitions. [2022-04-18 15:56:57,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 95 transitions, 272 flow [2022-04-18 15:56:57,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:56:57,169 INFO L242 Difference]: Finished difference. Result has 92 places, 88 transitions, 223 flow [2022-04-18 15:56:57,169 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2022-04-18 15:56:57,171 INFO L335 CegarLoopForPetriNet]: 109 programPoint places, -17 predicate places. [2022-04-18 15:56:57,172 INFO L478 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 223 flow [2022-04-18 15:56:57,172 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,172 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:57,173 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:56:57,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:56:57,173 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 15:56:57,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:57,176 INFO L85 PathProgramCache]: Analyzing trace with hash -736003309, now seen corresponding path program 1 times [2022-04-18 15:56:57,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:57,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719872438] [2022-04-18 15:56:57,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:57,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:56:57,225 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 15:56:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:56:57,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-18 15:56:57,265 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 15:56:57,266 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2022-04-18 15:56:57,267 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-04-18 15:56:57,268 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-04-18 15:56:57,268 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-04-18 15:56:57,268 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-04-18 15:56:57,271 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2022-04-18 15:56:57,272 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2022-04-18 15:56:57,273 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2022-04-18 15:56:57,273 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2022-04-18 15:56:57,273 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2022-04-18 15:56:57,273 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-04-18 15:56:57,274 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-04-18 15:56:57,274 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-04-18 15:56:57,274 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-04-18 15:56:57,274 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-04-18 15:56:57,275 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-04-18 15:56:57,275 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-04-18 15:56:57,275 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-04-18 15:56:57,275 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2022-04-18 15:56:57,276 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 38 remaining) [2022-04-18 15:56:57,276 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-04-18 15:56:57,276 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-04-18 15:56:57,276 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2022-04-18 15:56:57,276 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2022-04-18 15:56:57,276 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2022-04-18 15:56:57,277 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2022-04-18 15:56:57,277 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2022-04-18 15:56:57,278 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2022-04-18 15:56:57,280 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2022-04-18 15:56:57,280 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-04-18 15:56:57,280 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-04-18 15:56:57,280 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-04-18 15:56:57,280 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-04-18 15:56:57,281 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-04-18 15:56:57,281 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-04-18 15:56:57,282 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-04-18 15:56:57,282 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-04-18 15:56:57,289 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-04-18 15:56:57,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:56:57,293 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-04-18 15:56:57,294 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 15:56:57,294 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 15:56:57,327 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 15:56:57,333 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:56:57,334 INFO L340 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 [2022-04-18 15:56:57,334 INFO L341 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-04-18 15:56:57,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 182 transitions, 388 flow [2022-04-18 15:56:57,359 INFO L129 PetriNetUnfolder]: 10/182 cut-off events. [2022-04-18 15:56:57,360 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 15:56:57,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 182 events. 10/182 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 392 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 191. Up to 6 conditions per place. [2022-04-18 15:56:57,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 182 transitions, 388 flow [2022-04-18 15:56:57,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 158 transitions, 331 flow [2022-04-18 15:56:57,365 INFO L129 PetriNetUnfolder]: 2/30 cut-off events. [2022-04-18 15:56:57,365 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:56:57,366 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:57,366 INFO L255 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] [2022-04-18 15:56:57,366 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-04-18 15:56:57,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:57,366 INFO L85 PathProgramCache]: Analyzing trace with hash 440322614, now seen corresponding path program 1 times [2022-04-18 15:56:57,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:57,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023810490] [2022-04-18 15:56:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:57,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:57,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:57,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023810490] [2022-04-18 15:56:57,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023810490] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:57,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:57,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 15:56:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889680904] [2022-04-18 15:56:57,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:57,411 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 15:56:57,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:57,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 15:56:57,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 15:56:57,413 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 182 [2022-04-18 15:56:57,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 158 transitions, 331 flow. Second operand has 2 states, 2 states have (on average 141.0) internal successors, (282), 2 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:57,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 182 [2022-04-18 15:56:57,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:57,499 INFO L129 PetriNetUnfolder]: 71/571 cut-off events. [2022-04-18 15:56:57,499 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-04-18 15:56:57,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 571 events. 71/571 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2724 event pairs, 37 based on Foata normal form. 109/572 useless extension candidates. Maximal degree in co-relation 685. Up to 108 conditions per place. [2022-04-18 15:56:57,507 INFO L132 encePairwiseOnDemand]: 161/182 looper letters, 9 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2022-04-18 15:56:57,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 125 transitions, 283 flow [2022-04-18 15:56:57,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 15:56:57,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 15:56:57,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 310 transitions. [2022-04-18 15:56:57,508 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8516483516483516 [2022-04-18 15:56:57,508 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 310 transitions. [2022-04-18 15:56:57,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 310 transitions. [2022-04-18 15:56:57,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:57,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 310 transitions. [2022-04-18 15:56:57,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 155.0) internal successors, (310), 2 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,511 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,511 INFO L186 Difference]: Start difference. First operand has 158 places, 158 transitions, 331 flow. Second operand 2 states and 310 transitions. [2022-04-18 15:56:57,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 125 transitions, 283 flow [2022-04-18 15:56:57,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 125 transitions, 280 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-04-18 15:56:57,515 INFO L242 Difference]: Finished difference. Result has 130 places, 125 transitions, 262 flow [2022-04-18 15:56:57,515 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=262, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2022-04-18 15:56:57,516 INFO L335 CegarLoopForPetriNet]: 158 programPoint places, -28 predicate places. [2022-04-18 15:56:57,516 INFO L478 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 262 flow [2022-04-18 15:56:57,517 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 141.0) internal successors, (282), 2 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,517 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:57,517 INFO L255 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] [2022-04-18 15:56:57,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:56:57,517 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-04-18 15:56:57,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:57,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2051706824, now seen corresponding path program 1 times [2022-04-18 15:56:57,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:57,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123958300] [2022-04-18 15:56:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:57,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:57,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:57,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123958300] [2022-04-18 15:56:57,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123958300] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:57,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:57,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:56:57,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246347190] [2022-04-18 15:56:57,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:57,568 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:56:57,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:57,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:56:57,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:56:57,570 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 182 [2022-04-18 15:56:57,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:57,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:57,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 182 [2022-04-18 15:56:57,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:58,179 INFO L129 PetriNetUnfolder]: 1569/5444 cut-off events. [2022-04-18 15:56:58,179 INFO L130 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2022-04-18 15:56:58,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8070 conditions, 5444 events. 1569/5444 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 50724 event pairs, 453 based on Foata normal form. 0/4384 useless extension candidates. Maximal degree in co-relation 8065. Up to 1337 conditions per place. [2022-04-18 15:56:58,218 INFO L132 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 8 changer transitions 0/145 dead transitions. [2022-04-18 15:56:58,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 145 transitions, 398 flow [2022-04-18 15:56:58,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:56:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:56:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2022-04-18 15:56:58,219 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2022-04-18 15:56:58,219 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2022-04-18 15:56:58,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2022-04-18 15:56:58,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:58,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2022-04-18 15:56:58,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:58,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:58,221 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:58,222 INFO L186 Difference]: Start difference. First operand has 130 places, 125 transitions, 262 flow. Second operand 3 states and 413 transitions. [2022-04-18 15:56:58,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 145 transitions, 398 flow [2022-04-18 15:56:58,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 145 transitions, 398 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:56:58,226 INFO L242 Difference]: Finished difference. Result has 134 places, 133 transitions, 332 flow [2022-04-18 15:56:58,226 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2022-04-18 15:56:58,229 INFO L335 CegarLoopForPetriNet]: 158 programPoint places, -24 predicate places. [2022-04-18 15:56:58,230 INFO L478 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 332 flow [2022-04-18 15:56:58,230 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:58,230 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:58,230 INFO L255 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] [2022-04-18 15:56:58,231 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 15:56:58,231 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-04-18 15:56:58,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:58,231 INFO L85 PathProgramCache]: Analyzing trace with hash -300245478, now seen corresponding path program 1 times [2022-04-18 15:56:58,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:58,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429336508] [2022-04-18 15:56:58,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:58,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:58,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:58,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429336508] [2022-04-18 15:56:58,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429336508] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:58,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:58,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:56:58,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971607892] [2022-04-18 15:56:58,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:58,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:56:58,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:58,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:56:58,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:56:58,264 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 182 [2022-04-18 15:56:58,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:58,265 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:58,265 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 182 [2022-04-18 15:56:58,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:59,652 INFO L129 PetriNetUnfolder]: 4521/14546 cut-off events. [2022-04-18 15:56:59,652 INFO L130 PetriNetUnfolder]: For 912/915 co-relation queries the response was YES. [2022-04-18 15:56:59,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23500 conditions, 14546 events. 4521/14546 cut-off events. For 912/915 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 162349 event pairs, 1239 based on Foata normal form. 0/11752 useless extension candidates. Maximal degree in co-relation 23493. Up to 3532 conditions per place. [2022-04-18 15:56:59,867 INFO L132 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 8 changer transitions 0/153 dead transitions. [2022-04-18 15:56:59,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 153 transitions, 468 flow [2022-04-18 15:56:59,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:56:59,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:56:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2022-04-18 15:56:59,870 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2022-04-18 15:56:59,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2022-04-18 15:56:59,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2022-04-18 15:56:59,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:59,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2022-04-18 15:56:59,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:59,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:59,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:59,873 INFO L186 Difference]: Start difference. First operand has 134 places, 133 transitions, 332 flow. Second operand 3 states and 413 transitions. [2022-04-18 15:56:59,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 153 transitions, 468 flow [2022-04-18 15:56:59,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 153 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:56:59,881 INFO L242 Difference]: Finished difference. Result has 136 places, 141 transitions, 386 flow [2022-04-18 15:56:59,882 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=136, PETRI_TRANSITIONS=141} [2022-04-18 15:56:59,882 INFO L335 CegarLoopForPetriNet]: 158 programPoint places, -22 predicate places. [2022-04-18 15:56:59,882 INFO L478 AbstractCegarLoop]: Abstraction has has 136 places, 141 transitions, 386 flow [2022-04-18 15:56:59,883 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:59,883 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:59,883 INFO L255 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] [2022-04-18 15:56:59,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 15:56:59,883 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-04-18 15:56:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:59,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1726090235, now seen corresponding path program 1 times [2022-04-18 15:56:59,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:59,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64103358] [2022-04-18 15:56:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:59,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:59,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:59,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:59,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64103358] [2022-04-18 15:56:59,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64103358] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:59,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:59,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:56:59,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726104915] [2022-04-18 15:56:59,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:59,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:56:59,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:59,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:56:59,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:56:59,907 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 182 [2022-04-18 15:56:59,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 141 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:56:59,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:59,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 182 [2022-04-18 15:56:59,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:57:00,995 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [75#L708-5true, thr2Thread1of2ForFork0InUse, 8#L720-3true, thr2Thread2of2ForFork0InUse, 195#(= |#race~b~0| 0), thr1Thread1of2ForFork1InUse, Black: 193#true, 199#true, 102#L707true, 133#L730-4true, 184#true, Black: 189#(= |#race~a~0| 0)]) [2022-04-18 15:57:00,996 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 15:57:00,996 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-04-18 15:57:00,996 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 15:57:00,996 INFO L387 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-04-18 15:57:00,996 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [75#L708-5true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 195#(= |#race~b~0| 0), Black: 193#true, thr1Thread1of2ForFork1InUse, 199#true, 102#L707true, 133#L730-4true, 184#true, 127#L720-2true, Black: 189#(= |#race~a~0| 0)]) [2022-04-18 15:57:00,996 INFO L384 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2022-04-18 15:57:00,996 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-04-18 15:57:00,996 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 15:57:00,997 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-04-18 15:57:01,096 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [75#L708-5true, thr2Thread1of2ForFork0InUse, 8#L720-3true, thr2Thread2of2ForFork0InUse, 195#(= |#race~b~0| 0), thr1Thread1of2ForFork1InUse, Black: 193#true, 199#true, 133#L730-4true, 184#true, 174#L707-1true, Black: 189#(= |#race~a~0| 0)]) [2022-04-18 15:57:01,096 INFO L384 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-04-18 15:57:01,096 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-04-18 15:57:01,096 INFO L387 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-04-18 15:57:01,096 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-04-18 15:57:01,097 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [75#L708-5true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 195#(= |#race~b~0| 0), Black: 193#true, thr1Thread1of2ForFork1InUse, 199#true, 133#L730-4true, 184#true, 127#L720-2true, 174#L707-1true, Black: 189#(= |#race~a~0| 0)]) [2022-04-18 15:57:01,097 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 15:57:01,097 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-04-18 15:57:01,097 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 15:57:01,097 INFO L387 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-04-18 15:57:01,513 INFO L129 PetriNetUnfolder]: 5674/18551 cut-off events. [2022-04-18 15:57:01,513 INFO L130 PetriNetUnfolder]: For 982/985 co-relation queries the response was YES. [2022-04-18 15:57:01,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30800 conditions, 18551 events. 5674/18551 cut-off events. For 982/985 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 213635 event pairs, 2858 based on Foata normal form. 0/15352 useless extension candidates. Maximal degree in co-relation 30792. Up to 6563 conditions per place. [2022-04-18 15:57:01,739 INFO L132 encePairwiseOnDemand]: 176/182 looper letters, 31 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2022-04-18 15:57:01,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 154 transitions, 489 flow [2022-04-18 15:57:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:57:01,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:57:01,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 415 transitions. [2022-04-18 15:57:01,741 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.76007326007326 [2022-04-18 15:57:01,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 415 transitions. [2022-04-18 15:57:01,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 415 transitions. [2022-04-18 15:57:01,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:57:01,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 415 transitions. [2022-04-18 15:57:01,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:01,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:01,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:01,745 INFO L186 Difference]: Start difference. First operand has 136 places, 141 transitions, 386 flow. Second operand 3 states and 415 transitions. [2022-04-18 15:57:01,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 154 transitions, 489 flow [2022-04-18 15:57:01,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 154 transitions, 473 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:57:01,754 INFO L242 Difference]: Finished difference. Result has 138 places, 145 transitions, 408 flow [2022-04-18 15:57:01,754 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=138, PETRI_TRANSITIONS=145} [2022-04-18 15:57:01,755 INFO L335 CegarLoopForPetriNet]: 158 programPoint places, -20 predicate places. [2022-04-18 15:57:01,755 INFO L478 AbstractCegarLoop]: Abstraction has has 138 places, 145 transitions, 408 flow [2022-04-18 15:57:01,755 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:01,755 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:57:01,755 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:57:01,756 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 15:57:01,756 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-04-18 15:57:01,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:57:01,756 INFO L85 PathProgramCache]: Analyzing trace with hash -376935674, now seen corresponding path program 1 times [2022-04-18 15:57:01,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:57:01,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123345104] [2022-04-18 15:57:01,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:57:01,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:57:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:57:01,768 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 15:57:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:57:01,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-18 15:57:01,779 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 15:57:01,780 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 56 remaining) [2022-04-18 15:57:01,780 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-04-18 15:57:01,780 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-04-18 15:57:01,780 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-04-18 15:57:01,780 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-04-18 15:57:01,780 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-04-18 15:57:01,781 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-04-18 15:57:01,781 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-04-18 15:57:01,781 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2022-04-18 15:57:01,781 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2022-04-18 15:57:01,781 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-04-18 15:57:01,781 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-04-18 15:57:01,782 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-04-18 15:57:01,782 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-04-18 15:57:01,782 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-04-18 15:57:01,782 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-04-18 15:57:01,782 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-04-18 15:57:01,782 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-04-18 15:57:01,783 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-04-18 15:57:01,783 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 56 remaining) [2022-04-18 15:57:01,783 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-04-18 15:57:01,783 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-04-18 15:57:01,783 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-04-18 15:57:01,783 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-04-18 15:57:01,784 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-04-18 15:57:01,784 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-04-18 15:57:01,784 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-04-18 15:57:01,784 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-04-18 15:57:01,784 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-04-18 15:57:01,784 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2022-04-18 15:57:01,785 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2022-04-18 15:57:01,785 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-04-18 15:57:01,785 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-04-18 15:57:01,785 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-04-18 15:57:01,785 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-04-18 15:57:01,785 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-04-18 15:57:01,786 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-04-18 15:57:01,786 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-04-18 15:57:01,786 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-04-18 15:57:01,786 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-04-18 15:57:01,786 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-04-18 15:57:01,786 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-04-18 15:57:01,786 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-04-18 15:57:01,787 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-04-18 15:57:01,787 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-04-18 15:57:01,787 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-04-18 15:57:01,787 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-04-18 15:57:01,787 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-04-18 15:57:01,787 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-04-18 15:57:01,788 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-04-18 15:57:01,788 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-04-18 15:57:01,788 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-04-18 15:57:01,788 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-04-18 15:57:01,788 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-04-18 15:57:01,788 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-04-18 15:57:01,789 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-04-18 15:57:01,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 15:57:01,789 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-04-18 15:57:01,790 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 15:57:01,790 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 15:57:01,812 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 15:57:01,814 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:57:01,814 INFO L340 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 [2022-04-18 15:57:01,814 INFO L341 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-04-18 15:57:01,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 252 places, 254 transitions, 550 flow [2022-04-18 15:57:01,835 INFO L129 PetriNetUnfolder]: 13/244 cut-off events. [2022-04-18 15:57:01,836 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 15:57:01,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 244 events. 13/244 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 677 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 258. Up to 8 conditions per place. [2022-04-18 15:57:01,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 254 transitions, 550 flow [2022-04-18 15:57:01,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 207 transitions, 438 flow [2022-04-18 15:57:01,843 INFO L129 PetriNetUnfolder]: 2/31 cut-off events. [2022-04-18 15:57:01,843 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:57:01,843 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:57:01,843 INFO L255 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] [2022-04-18 15:57:01,843 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 15:57:01,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:57:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1299176429, now seen corresponding path program 1 times [2022-04-18 15:57:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:57:01,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550097863] [2022-04-18 15:57:01,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:57:01,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:57:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:57:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:57:01,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:57:01,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550097863] [2022-04-18 15:57:01,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550097863] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:57:01,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:57:01,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 15:57:01,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100389339] [2022-04-18 15:57:01,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:57:01,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 15:57:01,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:57:01,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 15:57:01,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 15:57:01,859 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 254 [2022-04-18 15:57:01,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 207 transitions, 438 flow. Second operand has 2 states, 2 states have (on average 193.0) internal successors, (386), 2 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:01,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:57:01,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 254 [2022-04-18 15:57:01,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:57:02,112 INFO L129 PetriNetUnfolder]: 337/2208 cut-off events. [2022-04-18 15:57:02,112 INFO L130 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2022-04-18 15:57:02,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 2208 events. 337/2208 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17255 event pairs, 195 based on Foata normal form. 424/2218 useless extension candidates. Maximal degree in co-relation 2773. Up to 454 conditions per place. [2022-04-18 15:57:02,141 INFO L132 encePairwiseOnDemand]: 227/254 looper letters, 12 selfloop transitions, 0 changer transitions 0/166 dead transitions. [2022-04-18 15:57:02,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 166 transitions, 380 flow [2022-04-18 15:57:02,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 15:57:02,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 15:57:02,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 423 transitions. [2022-04-18 15:57:02,143 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8326771653543307 [2022-04-18 15:57:02,143 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 423 transitions. [2022-04-18 15:57:02,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 423 transitions. [2022-04-18 15:57:02,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:57:02,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 423 transitions. [2022-04-18 15:57:02,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:02,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:02,146 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:02,146 INFO L186 Difference]: Start difference. First operand has 207 places, 207 transitions, 438 flow. Second operand 2 states and 423 transitions. [2022-04-18 15:57:02,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 166 transitions, 380 flow [2022-04-18 15:57:02,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 166 transitions, 373 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-04-18 15:57:02,149 INFO L242 Difference]: Finished difference. Result has 172 places, 166 transitions, 349 flow [2022-04-18 15:57:02,149 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=349, PETRI_PLACES=172, PETRI_TRANSITIONS=166} [2022-04-18 15:57:02,150 INFO L335 CegarLoopForPetriNet]: 207 programPoint places, -35 predicate places. [2022-04-18 15:57:02,150 INFO L478 AbstractCegarLoop]: Abstraction has has 172 places, 166 transitions, 349 flow [2022-04-18 15:57:02,151 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 193.0) internal successors, (386), 2 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:02,151 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:57:02,151 INFO L255 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] [2022-04-18 15:57:02,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 15:57:02,152 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 15:57:02,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:57:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1326968661, now seen corresponding path program 1 times [2022-04-18 15:57:02,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:57:02,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564359673] [2022-04-18 15:57:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:57:02,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:57:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:57:02,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:57:02,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:57:02,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564359673] [2022-04-18 15:57:02,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564359673] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:57:02,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:57:02,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:57:02,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967519597] [2022-04-18 15:57:02,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:57:02,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:57:02,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:57:02,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:57:02,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:57:02,182 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 254 [2022-04-18 15:57:02,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 166 transitions, 349 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:02,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:57:02,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 254 [2022-04-18 15:57:02,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:57:07,334 INFO L129 PetriNetUnfolder]: 23694/66111 cut-off events. [2022-04-18 15:57:07,334 INFO L130 PetriNetUnfolder]: For 2496/2496 co-relation queries the response was YES. [2022-04-18 15:57:07,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100803 conditions, 66111 events. 23694/66111 cut-off events. For 2496/2496 co-relation queries the response was YES. Maximal size of possible extension queue 1898. Compared 864749 event pairs, 7129 based on Foata normal form. 0/52956 useless extension candidates. Maximal degree in co-relation 100797. Up to 17233 conditions per place. [2022-04-18 15:57:08,199 INFO L132 encePairwiseOnDemand]: 239/254 looper letters, 50 selfloop transitions, 11 changer transitions 0/194 dead transitions. [2022-04-18 15:57:08,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 194 transitions, 540 flow [2022-04-18 15:57:08,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:57:08,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:57:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2022-04-18 15:57:08,201 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7349081364829396 [2022-04-18 15:57:08,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2022-04-18 15:57:08,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2022-04-18 15:57:08,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:57:08,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2022-04-18 15:57:08,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:08,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 254.0) internal successors, (1016), 4 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:08,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 254.0) internal successors, (1016), 4 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:08,205 INFO L186 Difference]: Start difference. First operand has 172 places, 166 transitions, 349 flow. Second operand 3 states and 560 transitions. [2022-04-18 15:57:08,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 194 transitions, 540 flow [2022-04-18 15:57:08,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 194 transitions, 540 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:57:08,209 INFO L242 Difference]: Finished difference. Result has 176 places, 177 transitions, 445 flow [2022-04-18 15:57:08,210 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=445, PETRI_PLACES=176, PETRI_TRANSITIONS=177} [2022-04-18 15:57:08,210 INFO L335 CegarLoopForPetriNet]: 207 programPoint places, -31 predicate places. [2022-04-18 15:57:08,211 INFO L478 AbstractCegarLoop]: Abstraction has has 176 places, 177 transitions, 445 flow [2022-04-18 15:57:08,211 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:08,211 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:57:08,211 INFO L255 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] [2022-04-18 15:57:08,211 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 15:57:08,211 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 15:57:08,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:57:08,212 INFO L85 PathProgramCache]: Analyzing trace with hash -388369801, now seen corresponding path program 1 times [2022-04-18 15:57:08,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:57:08,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268682632] [2022-04-18 15:57:08,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:57:08,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:57:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:57:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:57:08,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:57:08,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268682632] [2022-04-18 15:57:08,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268682632] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:57:08,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:57:08,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:57:08,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825266716] [2022-04-18 15:57:08,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:57:08,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:57:08,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:57:08,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:57:08,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:57:08,238 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 254 [2022-04-18 15:57:08,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 177 transitions, 445 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:08,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:57:08,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 254 [2022-04-18 15:57:08,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:57:11,906 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [114#L719-2true, Black: 258#true, 266#(= |#race~b~0| 0), 125#L708-5true, 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:11,906 INFO L384 tUnfolder$Statistics]: this new event has 91 ancestors and is cut-off event [2022-04-18 15:57:11,906 INFO L387 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-04-18 15:57:11,906 INFO L387 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-04-18 15:57:11,906 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-04-18 15:57:18,372 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [220#L707true, 114#L719-2true, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:18,372 INFO L384 tUnfolder$Statistics]: this new event has 103 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [220#L707true, 99#L721-1true, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:18,373 INFO L384 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [220#L707true, Black: 258#true, 151#L720-3true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:18,373 INFO L384 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 15:57:18,373 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [220#L707true, 193#L720-2true, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:18,374 INFO L384 tUnfolder$Statistics]: this new event has 98 ancestors and is cut-off event [2022-04-18 15:57:18,374 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-04-18 15:57:18,374 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 15:57:18,374 INFO L387 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-04-18 15:57:19,154 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [114#L719-2true, Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:19,159 INFO L384 tUnfolder$Statistics]: this new event has 104 ancestors and is cut-off event [2022-04-18 15:57:19,159 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-04-18 15:57:19,159 INFO L387 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-04-18 15:57:19,159 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-04-18 15:57:19,159 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [99#L721-1true, Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:19,160 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L387 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 151#L720-3true, 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:19,160 INFO L384 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L387 tUnfolder$Statistics]: existing Event has 77 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [193#L720-2true, Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:19,160 INFO L384 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 15:57:19,160 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-04-18 15:57:24,272 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([917] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][114], [224#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 115#L706-2true, 4#L708-1true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse, 55#L708-1true]) [2022-04-18 15:57:24,273 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is not cut-off event [2022-04-18 15:57:24,273 INFO L387 tUnfolder$Statistics]: existing Event has 106 ancestors and is not cut-off event [2022-04-18 15:57:24,273 INFO L387 tUnfolder$Statistics]: existing Event has 106 ancestors and is not cut-off event [2022-04-18 15:57:24,273 INFO L387 tUnfolder$Statistics]: existing Event has 106 ancestors and is not cut-off event [2022-04-18 15:57:24,273 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([917] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][114], [224#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 211#L708-2true, 260#(= |#race~a~0| 0), 115#L706-2true, 4#L708-1true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:24,273 INFO L384 tUnfolder$Statistics]: this new event has 107 ancestors and is cut-off event [2022-04-18 15:57:24,273 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:57:24,273 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:57:24,273 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:57:25,441 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [193#L720-2true, Black: 258#true, 266#(= |#race~b~0| 0), 125#L708-5true, 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:25,441 INFO L384 tUnfolder$Statistics]: this new event has 109 ancestors and is cut-off event [2022-04-18 15:57:25,441 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is cut-off event [2022-04-18 15:57:25,441 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 15:57:25,441 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 15:57:25,963 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [Black: 258#true, 266#(= |#race~b~0| 0), 151#L720-3true, 125#L708-5true, 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:25,963 INFO L384 tUnfolder$Statistics]: this new event has 110 ancestors and is cut-off event [2022-04-18 15:57:25,963 INFO L387 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-04-18 15:57:25,963 INFO L387 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-04-18 15:57:25,963 INFO L387 tUnfolder$Statistics]: existing Event has 87 ancestors and is cut-off event [2022-04-18 15:57:26,426 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([922] L708-4-->L708-5: Formula: (= |v_thr2Thread2of3ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of3ForFork0_#t~nondet6#1=|v_thr2Thread2of3ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of3ForFork0_#t~nondet6#1=|v_thr2Thread2of3ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][105], [154#L720-1true, Black: 260#(= |#race~a~0| 0), 266#(= |#race~b~0| 0), 118#L708-5true, 125#L708-5true, 94#L730-4true, thr1Thread1of3ForFork1InUse, 85#L707true, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse, 258#true]) [2022-04-18 15:57:26,426 INFO L384 tUnfolder$Statistics]: this new event has 113 ancestors and is cut-off event [2022-04-18 15:57:26,426 INFO L387 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-04-18 15:57:26,426 INFO L387 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-04-18 15:57:26,426 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-04-18 15:57:26,427 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([922] L708-4-->L708-5: Formula: (= |v_thr2Thread2of3ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of3ForFork0_#t~nondet6#1=|v_thr2Thread2of3ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of3ForFork0_#t~nondet6#1=|v_thr2Thread2of3ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][105], [Black: 260#(= |#race~a~0| 0), 63#L707-1true, 266#(= |#race~b~0| 0), 118#L708-5true, 125#L708-5true, 94#L730-4true, 106#L720true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse, 258#true]) [2022-04-18 15:57:26,427 INFO L384 tUnfolder$Statistics]: this new event has 113 ancestors and is cut-off event [2022-04-18 15:57:26,427 INFO L387 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-04-18 15:57:26,427 INFO L387 tUnfolder$Statistics]: existing Event has 82 ancestors and is cut-off event [2022-04-18 15:57:26,427 INFO L387 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-04-18 15:57:26,599 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [99#L721-1true, Black: 258#true, 266#(= |#race~b~0| 0), 125#L708-5true, 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:26,599 INFO L384 tUnfolder$Statistics]: this new event has 112 ancestors and is cut-off event [2022-04-18 15:57:26,599 INFO L387 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2022-04-18 15:57:26,599 INFO L387 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-04-18 15:57:26,599 INFO L387 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-04-18 15:57:26,708 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([922] L708-4-->L708-5: Formula: (= |v_thr2Thread2of3ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of3ForFork0_#t~nondet6#1=|v_thr2Thread2of3ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of3ForFork0_#t~nondet6#1=|v_thr2Thread2of3ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][105], [154#L720-1true, Black: 260#(= |#race~a~0| 0), 63#L707-1true, 266#(= |#race~b~0| 0), 118#L708-5true, 125#L708-5true, 94#L730-4true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse, 258#true]) [2022-04-18 15:57:26,709 INFO L384 tUnfolder$Statistics]: this new event has 114 ancestors and is cut-off event [2022-04-18 15:57:26,709 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 15:57:26,709 INFO L387 tUnfolder$Statistics]: existing Event has 114 ancestors and is cut-off event [2022-04-18 15:57:26,709 INFO L387 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-04-18 15:57:28,527 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [Black: 258#true, 266#(= |#race~b~0| 0), 125#L708-5true, 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 106#L720true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 184#L708-2true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:28,527 INFO L384 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-04-18 15:57:28,528 INFO L387 tUnfolder$Statistics]: existing Event has 85 ancestors and is cut-off event [2022-04-18 15:57:28,528 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 15:57:28,528 INFO L387 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-04-18 15:57:28,758 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [154#L720-1true, Black: 258#true, 266#(= |#race~b~0| 0), 125#L708-5true, 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 184#L708-2true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:28,758 INFO L384 tUnfolder$Statistics]: this new event has 117 ancestors and is cut-off event [2022-04-18 15:57:28,759 INFO L387 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-04-18 15:57:28,759 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is cut-off event [2022-04-18 15:57:28,759 INFO L387 tUnfolder$Statistics]: existing Event has 117 ancestors and is cut-off event [2022-04-18 15:57:30,422 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([908] L706-2-->L707: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][72], [220#L707true, Black: 258#true, 153#L707true, 94#L730-4true, 260#(= |#race~a~0| 0), 106#L720true, thr1Thread1of3ForFork1InUse, 85#L707true, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 264#true, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:30,423 INFO L384 tUnfolder$Statistics]: this new event has 129 ancestors and is cut-off event [2022-04-18 15:57:30,425 INFO L387 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-04-18 15:57:30,425 INFO L387 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-04-18 15:57:30,425 INFO L387 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-04-18 15:57:30,517 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([908] L706-2-->L707: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][72], [220#L707true, 154#L720-1true, Black: 258#true, 153#L707true, 94#L730-4true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 85#L707true, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 264#true, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:30,517 INFO L384 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-04-18 15:57:30,517 INFO L387 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-04-18 15:57:30,517 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 15:57:30,517 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 15:57:30,518 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([908] L706-2-->L707: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][72], [Black: 258#true, 100#L707-1true, 153#L707true, 94#L730-4true, 260#(= |#race~a~0| 0), 106#L720true, thr1Thread1of3ForFork1InUse, 85#L707true, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 264#true, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:30,518 INFO L384 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-04-18 15:57:30,518 INFO L387 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-04-18 15:57:30,518 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 15:57:30,518 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 15:57:30,519 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([908] L706-2-->L707: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][72], [220#L707true, Black: 258#true, 63#L707-1true, 153#L707true, 94#L730-4true, 260#(= |#race~a~0| 0), 106#L720true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 264#true, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:30,519 INFO L384 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-04-18 15:57:30,519 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 15:57:30,519 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 15:57:30,519 INFO L387 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-04-18 15:57:30,605 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([908] L706-2-->L707: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][72], [154#L720-1true, Black: 258#true, 100#L707-1true, 153#L707true, 94#L730-4true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 85#L707true, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 264#true, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:30,605 INFO L384 tUnfolder$Statistics]: this new event has 131 ancestors and is cut-off event [2022-04-18 15:57:30,605 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-04-18 15:57:30,605 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 15:57:30,605 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-04-18 15:57:30,605 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([908] L706-2-->L707: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][72], [220#L707true, 154#L720-1true, Black: 258#true, 63#L707-1true, 153#L707true, 94#L730-4true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 264#true, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:30,605 INFO L384 tUnfolder$Statistics]: this new event has 131 ancestors and is cut-off event [2022-04-18 15:57:30,605 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 15:57:30,605 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-04-18 15:57:30,605 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-04-18 15:57:30,606 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([908] L706-2-->L707: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][72], [Black: 258#true, 63#L707-1true, 100#L707-1true, 153#L707true, 94#L730-4true, 260#(= |#race~a~0| 0), 106#L720true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 264#true, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:30,606 INFO L384 tUnfolder$Statistics]: this new event has 131 ancestors and is cut-off event [2022-04-18 15:57:30,606 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-04-18 15:57:30,606 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 15:57:30,606 INFO L387 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-04-18 15:57:30,909 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([908] L706-2-->L707: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][72], [154#L720-1true, Black: 258#true, 63#L707-1true, 100#L707-1true, 153#L707true, 94#L730-4true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 264#true, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:30,909 INFO L384 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-04-18 15:57:30,909 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 15:57:30,909 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 15:57:30,909 INFO L387 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-04-18 15:57:31,066 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][118], [220#L707true, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 106#L720true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,066 INFO L384 tUnfolder$Statistics]: this new event has 135 ancestors and is cut-off event [2022-04-18 15:57:31,066 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-04-18 15:57:31,066 INFO L387 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-04-18 15:57:31,066 INFO L387 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-04-18 15:57:31,101 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [220#L707true, 193#L720-2true, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,102 INFO L384 tUnfolder$Statistics]: this new event has 137 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L387 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L387 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [220#L707true, Black: 258#true, 151#L720-3true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,102 INFO L384 tUnfolder$Statistics]: this new event has 138 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 15:57:31,102 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [220#L707true, 99#L721-1true, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,102 INFO L384 tUnfolder$Statistics]: this new event has 140 ancestors and is cut-off event [2022-04-18 15:57:31,103 INFO L387 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-04-18 15:57:31,103 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 15:57:31,103 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 15:57:31,103 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 15:57:31,103 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][118], [220#L707true, 154#L720-1true, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,103 INFO L384 tUnfolder$Statistics]: this new event has 136 ancestors and is cut-off event [2022-04-18 15:57:31,103 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-04-18 15:57:31,103 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-04-18 15:57:31,103 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-04-18 15:57:31,104 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][118], [Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 106#L720true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,104 INFO L384 tUnfolder$Statistics]: this new event has 136 ancestors and is cut-off event [2022-04-18 15:57:31,104 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-04-18 15:57:31,104 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-04-18 15:57:31,104 INFO L387 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-04-18 15:57:31,133 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [99#L721-1true, Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,133 INFO L384 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-04-18 15:57:31,133 INFO L387 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-04-18 15:57:31,133 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-04-18 15:57:31,133 INFO L387 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-04-18 15:57:31,134 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-04-18 15:57:31,134 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [Black: 258#true, 100#L707-1true, 151#L720-3true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,134 INFO L384 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-04-18 15:57:31,134 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:57:31,134 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-04-18 15:57:31,134 INFO L387 tUnfolder$Statistics]: existing Event has 77 ancestors and is cut-off event [2022-04-18 15:57:31,134 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:57:31,134 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [193#L720-2true, Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,134 INFO L384 tUnfolder$Statistics]: this new event has 138 ancestors and is cut-off event [2022-04-18 15:57:31,134 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 15:57:31,135 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-04-18 15:57:31,135 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 15:57:31,135 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-04-18 15:57:31,135 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][118], [154#L720-1true, Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,135 INFO L384 tUnfolder$Statistics]: this new event has 137 ancestors and is cut-off event [2022-04-18 15:57:31,135 INFO L387 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-04-18 15:57:31,135 INFO L387 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-04-18 15:57:31,135 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 15:57:31,160 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1026] L719-2-->L720: Formula: (= |v_#race~a~0_7| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_7|} AuxVars[] AssignedVars[#race~a~0][48], [220#L707true, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 106#L720true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 85#L707true, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,161 INFO L384 tUnfolder$Statistics]: this new event has 136 ancestors and is cut-off event [2022-04-18 15:57:31,161 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-04-18 15:57:31,161 INFO L387 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-04-18 15:57:31,161 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 15:57:31,161 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1026] L719-2-->L720: Formula: (= |v_#race~a~0_7| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_7|} AuxVars[] AssignedVars[#race~a~0][48], [220#L707true, Black: 258#true, 63#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 106#L720true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,161 INFO L384 tUnfolder$Statistics]: this new event has 137 ancestors and is cut-off event [2022-04-18 15:57:31,161 INFO L387 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-04-18 15:57:31,161 INFO L387 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-04-18 15:57:31,161 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-04-18 15:57:31,161 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [220#L707true, 114#L719-2true, Black: 258#true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,161 INFO L384 tUnfolder$Statistics]: this new event has 142 ancestors and is cut-off event [2022-04-18 15:57:31,161 INFO L387 tUnfolder$Statistics]: existing Event has 80 ancestors and is cut-off event [2022-04-18 15:57:31,162 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-04-18 15:57:31,162 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-04-18 15:57:31,162 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-04-18 15:57:31,189 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1026] L719-2-->L720: Formula: (= |v_#race~a~0_7| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_7|} AuxVars[] AssignedVars[#race~a~0][48], [Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 106#L720true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 85#L707true, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,189 INFO L384 tUnfolder$Statistics]: this new event has 137 ancestors and is cut-off event [2022-04-18 15:57:31,189 INFO L387 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-04-18 15:57:31,189 INFO L387 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-04-18 15:57:31,189 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-04-18 15:57:31,190 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1026] L719-2-->L720: Formula: (= |v_#race~a~0_7| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_7|} AuxVars[] AssignedVars[#race~a~0][48], [Black: 258#true, 63#L707-1true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 106#L720true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,190 INFO L384 tUnfolder$Statistics]: this new event has 138 ancestors and is cut-off event [2022-04-18 15:57:31,190 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-04-18 15:57:31,190 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 15:57:31,190 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-04-18 15:57:31,190 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [114#L719-2true, Black: 258#true, 100#L707-1true, 266#(= |#race~b~0| 0), 94#L730-4true, 260#(= |#race~a~0| 0), 177#L708-1true, 140#L706-2true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-04-18 15:57:31,190 INFO L384 tUnfolder$Statistics]: this new event has 143 ancestors and is cut-off event [2022-04-18 15:57:31,190 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-04-18 15:57:31,191 INFO L387 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-04-18 15:57:31,191 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-04-18 15:57:31,191 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-04-18 15:57:31,387 INFO L129 PetriNetUnfolder]: 99224/256421 cut-off events. [2022-04-18 15:57:31,387 INFO L130 PetriNetUnfolder]: For 16729/17538 co-relation queries the response was YES. [2022-04-18 15:57:33,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 426533 conditions, 256421 events. 99224/256421 cut-off events. For 16729/17538 co-relation queries the response was YES. Maximal size of possible extension queue 6889. Compared 3817057 event pairs, 27574 based on Foata normal form. 0/206186 useless extension candidates. Maximal degree in co-relation 426525. Up to 67409 conditions per place. [2022-04-18 15:57:35,548 INFO L132 encePairwiseOnDemand]: 239/254 looper letters, 50 selfloop transitions, 11 changer transitions 0/205 dead transitions. [2022-04-18 15:57:35,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 205 transitions, 636 flow [2022-04-18 15:57:35,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:57:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:57:35,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2022-04-18 15:57:35,550 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7349081364829396 [2022-04-18 15:57:35,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2022-04-18 15:57:35,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2022-04-18 15:57:35,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:57:35,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2022-04-18 15:57:35,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:35,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 254.0) internal successors, (1016), 4 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:35,553 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 254.0) internal successors, (1016), 4 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:35,553 INFO L186 Difference]: Start difference. First operand has 176 places, 177 transitions, 445 flow. Second operand 3 states and 560 transitions. [2022-04-18 15:57:35,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 205 transitions, 636 flow [2022-04-18 15:57:35,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 205 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:57:35,644 INFO L242 Difference]: Finished difference. Result has 178 places, 188 transitions, 519 flow [2022-04-18 15:57:35,644 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=519, PETRI_PLACES=178, PETRI_TRANSITIONS=188} [2022-04-18 15:57:35,645 INFO L335 CegarLoopForPetriNet]: 207 programPoint places, -29 predicate places. [2022-04-18 15:57:35,645 INFO L478 AbstractCegarLoop]: Abstraction has has 178 places, 188 transitions, 519 flow [2022-04-18 15:57:35,645 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:35,645 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:57:35,645 INFO L255 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] [2022-04-18 15:57:35,646 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 15:57:35,646 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 15:57:35,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:57:35,646 INFO L85 PathProgramCache]: Analyzing trace with hash -195455018, now seen corresponding path program 1 times [2022-04-18 15:57:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:57:35,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056691917] [2022-04-18 15:57:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:57:35,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:57:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:57:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:57:35,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:57:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056691917] [2022-04-18 15:57:35,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056691917] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:57:35,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:57:35,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:57:35,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842039762] [2022-04-18 15:57:35,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:57:35,664 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:57:35,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:57:35,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:57:35,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:57:35,666 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 254 [2022-04-18 15:57:35,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 188 transitions, 519 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:57:35,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:57:35,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 254 [2022-04-18 15:57:35,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand