./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:14:15,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:14:15,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:14:15,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:14:15,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:14:15,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:14:15,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:14:15,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:14:15,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:14:15,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:14:15,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:14:15,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:14:15,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:14:15,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:14:15,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:14:15,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:14:15,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:14:15,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:14:15,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:14:15,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:14:15,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:14:15,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:14:15,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:14:15,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:14:15,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:14:15,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:14:15,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:14:15,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:14:15,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:14:15,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:14:15,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:14:15,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:14:15,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:14:15,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:14:15,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:14:15,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:14:15,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:14:15,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:14:15,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:14:15,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:14:15,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:14:15,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:14:15,831 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:14:15,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:14:15,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:14:15,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:14:15,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:14:15,834 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:14:15,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:14:15,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:14:15,835 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:14:15,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:14:15,836 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:14:15,836 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:14:15,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:14:15,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:14:15,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:14:15,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:14:15,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:14:15,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:14:15,837 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:14:15,837 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:14:15,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:14:15,838 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:14:15,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:14:15,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:14:15,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:14:15,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:14:15,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:14:15,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:14:15,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:14:15,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:14:15,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:14:15,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:14:15,840 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:14:15,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:14:15,840 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:14:15,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:14:15,840 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:14:15,841 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:14:16,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:14:16,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:14:16,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:14:16,155 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:14:16,155 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:14:16,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-29 02:14:17,283 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:14:17,646 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:14:17,646 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-29 02:14:17,667 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63a92625e/badd75f16a004827831e49774649b3d4/FLAG5cebbd4f4 [2023-08-29 02:14:17,689 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63a92625e/badd75f16a004827831e49774649b3d4 [2023-08-29 02:14:17,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:14:17,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:14:17,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:14:17,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:14:17,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:14:17,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:14:17" (1/1) ... [2023-08-29 02:14:17,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f22a2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:17, skipping insertion in model container [2023-08-29 02:14:17,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:14:17" (1/1) ... [2023-08-29 02:14:17,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:14:17,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:14:18,285 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:14:18,296 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:14:18,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:14:18,428 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:14:18,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18 WrapperNode [2023-08-29 02:14:18,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:14:18,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:14:18,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:14:18,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:14:18,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,524 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 174 [2023-08-29 02:14:18,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:14:18,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:14:18,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:14:18,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:14:18,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,587 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:14:18,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:14:18,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:14:18,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:14:18,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (1/1) ... [2023-08-29 02:14:18,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:14:18,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:14:18,634 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) [2023-08-29 02:14:18,651 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 [2023-08-29 02:14:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:14:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 02:14:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:14:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:14:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:14:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:14:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:14:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:14:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:14:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:14:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:14:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:14:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:14:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:14:18,680 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:14:18,801 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:14:18,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:14:19,315 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:14:19,329 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:14:19,329 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:14:19,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:14:19 BoogieIcfgContainer [2023-08-29 02:14:19,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:14:19,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:14:19,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:14:19,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:14:19,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:14:17" (1/3) ... [2023-08-29 02:14:19,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309c315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:14:19, skipping insertion in model container [2023-08-29 02:14:19,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:18" (2/3) ... [2023-08-29 02:14:19,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309c315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:14:19, skipping insertion in model container [2023-08-29 02:14:19,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:14:19" (3/3) ... [2023-08-29 02:14:19,339 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2023-08-29 02:14:19,345 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:14:19,353 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:14:19,354 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-29 02:14:19,354 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:14:19,427 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:14:19,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 267 transitions, 539 flow [2023-08-29 02:14:19,600 INFO L130 PetriNetUnfolder]: 0/266 cut-off events. [2023-08-29 02:14:19,600 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:14:19,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 0/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 153 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:14:19,605 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 267 transitions, 539 flow [2023-08-29 02:14:19,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 266 transitions, 535 flow [2023-08-29 02:14:19,617 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:14:19,631 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-29 02:14:19,635 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-29 02:14:19,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 266 transitions, 535 flow [2023-08-29 02:14:19,688 INFO L130 PetriNetUnfolder]: 0/266 cut-off events. [2023-08-29 02:14:19,689 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:14:19,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 0/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 153 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:14:19,694 INFO L119 LiptonReduction]: Number of co-enabled transitions 7590 [2023-08-29 02:14:39,348 WARN L222 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 141 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:14:51,928 WARN L222 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 141 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:10,976 WARN L222 SmtUtils]: Spent 7.04s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:17,807 WARN L222 SmtUtils]: Spent 6.83s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:24,387 WARN L222 SmtUtils]: Spent 6.58s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:31,506 WARN L222 SmtUtils]: Spent 7.11s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:55,214 WARN L222 SmtUtils]: Spent 23.68s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:07,841 WARN L222 SmtUtils]: Spent 9.51s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:25,373 WARN L222 SmtUtils]: Spent 17.52s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:17:21,340 WARN L222 SmtUtils]: Spent 55.93s on a formula simplification that was a NOOP. DAG size: 363 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:18:15,424 WARN L222 SmtUtils]: Spent 54.08s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:20:19,788 WARN L222 SmtUtils]: Spent 2.07m on a formula simplification that was a NOOP. DAG size: 363 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:20:33,886 WARN L222 SmtUtils]: Spent 14.09s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:20:33,896 INFO L134 LiptonReduction]: Checked pairs total: 81588 [2023-08-29 02:20:33,897 INFO L136 LiptonReduction]: Total number of compositions: 227 [2023-08-29 02:20:33,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:20:33,913 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@116c14, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:20:33,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-08-29 02:20:33,915 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 02:20:33,915 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:20:33,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:33,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 02:20:33,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:33,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:33,921 INFO L85 PathProgramCache]: Analyzing trace with hash 852, now seen corresponding path program 1 times [2023-08-29 02:20:33,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:33,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073135108] [2023-08-29 02:20:33,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:33,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:34,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:34,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073135108] [2023-08-29 02:20:34,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073135108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:34,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:34,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 02:20:34,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146672768] [2023-08-29 02:20:34,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:34,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:20:34,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:34,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:20:34,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:20:34,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 494 [2023-08-29 02:20:34,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:34,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:34,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 494 [2023-08-29 02:20:34,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:34,800 INFO L130 PetriNetUnfolder]: 140/714 cut-off events. [2023-08-29 02:20:34,800 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:20:34,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 714 events. 140/714 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4052 event pairs, 140 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 1016. Up to 307 conditions per place. [2023-08-29 02:20:34,809 INFO L137 encePairwiseOnDemand]: 480/494 looper letters, 26 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2023-08-29 02:20:34,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 88 transitions, 231 flow [2023-08-29 02:20:34,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:20:34,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:20:34,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 572 transitions. [2023-08-29 02:20:34,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2023-08-29 02:20:34,830 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 572 transitions. [2023-08-29 02:20:34,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 572 transitions. [2023-08-29 02:20:34,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:34,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 572 transitions. [2023-08-29 02:20:34,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 286.0) internal successors, (572), 2 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:34,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:34,848 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:34,852 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 207 flow. Second operand 2 states and 572 transitions. [2023-08-29 02:20:34,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 88 transitions, 231 flow [2023-08-29 02:20:34,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 88 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:20:34,858 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 178 flow [2023-08-29 02:20:34,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=178, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2023-08-29 02:20:34,864 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-29 02:20:34,865 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 178 flow [2023-08-29 02:20:34,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:34,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:34,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 02:20:34,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:20:34,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:34,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:34,879 INFO L85 PathProgramCache]: Analyzing trace with hash 816673469, now seen corresponding path program 1 times [2023-08-29 02:20:34,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:34,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031585945] [2023-08-29 02:20:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:34,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:35,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:35,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:35,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031585945] [2023-08-29 02:20:35,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031585945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:35,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:35,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:20:35,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475973030] [2023-08-29 02:20:35,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:35,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:20:35,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:35,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:20:35,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:20:35,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 494 [2023-08-29 02:20:35,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:35,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:35,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 494 [2023-08-29 02:20:35,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:35,688 INFO L130 PetriNetUnfolder]: 154/764 cut-off events. [2023-08-29 02:20:35,689 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:20:35,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 764 events. 154/764 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4378 event pairs, 154 based on Foata normal form. 0/716 useless extension candidates. Maximal degree in co-relation 1101. Up to 335 conditions per place. [2023-08-29 02:20:35,692 INFO L137 encePairwiseOnDemand]: 491/494 looper letters, 26 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-08-29 02:20:35,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 86 transitions, 228 flow [2023-08-29 02:20:35,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:20:35,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:20:35,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2023-08-29 02:20:35,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317139001349528 [2023-08-29 02:20:35,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 788 transitions. [2023-08-29 02:20:35,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 788 transitions. [2023-08-29 02:20:35,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:35,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 788 transitions. [2023-08-29 02:20:35,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:35,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:35,703 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:35,703 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 178 flow. Second operand 3 states and 788 transitions. [2023-08-29 02:20:35,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 86 transitions, 228 flow [2023-08-29 02:20:35,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:35,706 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 176 flow [2023-08-29 02:20:35,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2023-08-29 02:20:35,707 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-29 02:20:35,707 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 176 flow [2023-08-29 02:20:35,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:35,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:35,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:35,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:20:35,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:35,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:35,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1139645560, now seen corresponding path program 1 times [2023-08-29 02:20:35,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:35,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261488442] [2023-08-29 02:20:35,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:35,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:36,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:36,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261488442] [2023-08-29 02:20:36,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261488442] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:36,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:36,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:20:36,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144610423] [2023-08-29 02:20:36,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:36,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:20:36,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:36,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:20:36,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:20:37,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 494 [2023-08-29 02:20:37,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:37,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:37,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 494 [2023-08-29 02:20:37,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:38,140 INFO L130 PetriNetUnfolder]: 503/1856 cut-off events. [2023-08-29 02:20:38,140 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:20:38,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2937 conditions, 1856 events. 503/1856 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12560 event pairs, 61 based on Foata normal form. 0/1747 useless extension candidates. Maximal degree in co-relation 2933. Up to 538 conditions per place. [2023-08-29 02:20:38,148 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 110 selfloop transitions, 38 changer transitions 0/192 dead transitions. [2023-08-29 02:20:38,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 192 transitions, 684 flow [2023-08-29 02:20:38,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:20:38,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:20:38,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1416 transitions. [2023-08-29 02:20:38,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777327935222672 [2023-08-29 02:20:38,153 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1416 transitions. [2023-08-29 02:20:38,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1416 transitions. [2023-08-29 02:20:38,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:38,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1416 transitions. [2023-08-29 02:20:38,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:38,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:38,163 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:38,163 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 176 flow. Second operand 6 states and 1416 transitions. [2023-08-29 02:20:38,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 192 transitions, 684 flow [2023-08-29 02:20:38,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 192 transitions, 683 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:20:38,167 INFO L231 Difference]: Finished difference. Result has 100 places, 122 transitions, 433 flow [2023-08-29 02:20:38,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=433, PETRI_PLACES=100, PETRI_TRANSITIONS=122} [2023-08-29 02:20:38,168 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -6 predicate places. [2023-08-29 02:20:38,168 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 122 transitions, 433 flow [2023-08-29 02:20:38,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:38,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:38,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:38,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:20:38,170 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:38,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:38,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2128750545, now seen corresponding path program 1 times [2023-08-29 02:20:38,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:38,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187614847] [2023-08-29 02:20:38,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:38,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:38,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:38,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187614847] [2023-08-29 02:20:38,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187614847] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:38,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:38,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:20:38,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929142784] [2023-08-29 02:20:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:38,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:20:38,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:38,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:20:38,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:20:39,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 494 [2023-08-29 02:20:39,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 122 transitions, 433 flow. Second operand has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:39,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:39,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 494 [2023-08-29 02:20:39,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:40,917 INFO L130 PetriNetUnfolder]: 413/1679 cut-off events. [2023-08-29 02:20:40,917 INFO L131 PetriNetUnfolder]: For 306/319 co-relation queries the response was YES. [2023-08-29 02:20:40,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3089 conditions, 1679 events. 413/1679 cut-off events. For 306/319 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11772 event pairs, 231 based on Foata normal form. 3/1554 useless extension candidates. Maximal degree in co-relation 3081. Up to 758 conditions per place. [2023-08-29 02:20:40,927 INFO L137 encePairwiseOnDemand]: 488/494 looper letters, 101 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2023-08-29 02:20:40,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 161 transitions, 731 flow [2023-08-29 02:20:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:20:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:20:40,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1380 transitions. [2023-08-29 02:20:40,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46558704453441296 [2023-08-29 02:20:40,932 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1380 transitions. [2023-08-29 02:20:40,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1380 transitions. [2023-08-29 02:20:40,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:40,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1380 transitions. [2023-08-29 02:20:40,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:40,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:40,942 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:40,943 INFO L175 Difference]: Start difference. First operand has 100 places, 122 transitions, 433 flow. Second operand 6 states and 1380 transitions. [2023-08-29 02:20:40,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 161 transitions, 731 flow [2023-08-29 02:20:40,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 161 transitions, 731 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:40,951 INFO L231 Difference]: Finished difference. Result has 104 places, 121 transitions, 441 flow [2023-08-29 02:20:40,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=441, PETRI_PLACES=104, PETRI_TRANSITIONS=121} [2023-08-29 02:20:40,953 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -2 predicate places. [2023-08-29 02:20:40,954 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 121 transitions, 441 flow [2023-08-29 02:20:40,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:40,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:40,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:40,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:20:40,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:40,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:40,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1720171372, now seen corresponding path program 1 times [2023-08-29 02:20:40,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:40,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873120523] [2023-08-29 02:20:40,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:40,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:41,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:41,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873120523] [2023-08-29 02:20:41,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873120523] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:41,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:41,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:20:41,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351116606] [2023-08-29 02:20:41,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:41,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:20:41,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:41,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:20:41,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:20:41,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 494 [2023-08-29 02:20:41,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 121 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:41,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:41,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 494 [2023-08-29 02:20:41,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:43,399 INFO L130 PetriNetUnfolder]: 816/2682 cut-off events. [2023-08-29 02:20:43,399 INFO L131 PetriNetUnfolder]: For 660/672 co-relation queries the response was YES. [2023-08-29 02:20:43,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5284 conditions, 2682 events. 816/2682 cut-off events. For 660/672 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 19394 event pairs, 147 based on Foata normal form. 3/2516 useless extension candidates. Maximal degree in co-relation 5275. Up to 1024 conditions per place. [2023-08-29 02:20:43,413 INFO L137 encePairwiseOnDemand]: 473/494 looper letters, 119 selfloop transitions, 71 changer transitions 0/240 dead transitions. [2023-08-29 02:20:43,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 240 transitions, 1251 flow [2023-08-29 02:20:43,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:20:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:20:43,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1395 transitions. [2023-08-29 02:20:43,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4706477732793522 [2023-08-29 02:20:43,417 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1395 transitions. [2023-08-29 02:20:43,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1395 transitions. [2023-08-29 02:20:43,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:43,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1395 transitions. [2023-08-29 02:20:43,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 232.5) internal successors, (1395), 6 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:43,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:43,425 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:43,425 INFO L175 Difference]: Start difference. First operand has 104 places, 121 transitions, 441 flow. Second operand 6 states and 1395 transitions. [2023-08-29 02:20:43,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 240 transitions, 1251 flow [2023-08-29 02:20:43,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 240 transitions, 1233 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 02:20:43,432 INFO L231 Difference]: Finished difference. Result has 109 places, 190 transitions, 1089 flow [2023-08-29 02:20:43,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1089, PETRI_PLACES=109, PETRI_TRANSITIONS=190} [2023-08-29 02:20:43,433 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2023-08-29 02:20:43,433 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 190 transitions, 1089 flow [2023-08-29 02:20:43,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:43,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:43,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:43,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:20:43,434 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:43,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:43,434 INFO L85 PathProgramCache]: Analyzing trace with hash 485984485, now seen corresponding path program 1 times [2023-08-29 02:20:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:43,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548980846] [2023-08-29 02:20:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:43,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:43,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:43,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548980846] [2023-08-29 02:20:43,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548980846] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:43,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:43,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:20:43,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058368851] [2023-08-29 02:20:43,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:43,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:20:43,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:43,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:20:43,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:20:44,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 494 [2023-08-29 02:20:44,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 190 transitions, 1089 flow. Second operand has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:44,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:44,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 494 [2023-08-29 02:20:44,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:46,162 INFO L130 PetriNetUnfolder]: 1833/4483 cut-off events. [2023-08-29 02:20:46,162 INFO L131 PetriNetUnfolder]: For 3004/3050 co-relation queries the response was YES. [2023-08-29 02:20:46,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11967 conditions, 4483 events. 1833/4483 cut-off events. For 3004/3050 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 30400 event pairs, 1032 based on Foata normal form. 0/4196 useless extension candidates. Maximal degree in co-relation 11954. Up to 3644 conditions per place. [2023-08-29 02:20:46,206 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 205 selfloop transitions, 79 changer transitions 0/304 dead transitions. [2023-08-29 02:20:46,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 304 transitions, 2109 flow [2023-08-29 02:20:46,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:20:46,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:20:46,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2023-08-29 02:20:46,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43690958164642374 [2023-08-29 02:20:46,211 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1295 transitions. [2023-08-29 02:20:46,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1295 transitions. [2023-08-29 02:20:46,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:46,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1295 transitions. [2023-08-29 02:20:46,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:46,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:46,221 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:46,221 INFO L175 Difference]: Start difference. First operand has 109 places, 190 transitions, 1089 flow. Second operand 6 states and 1295 transitions. [2023-08-29 02:20:46,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 304 transitions, 2109 flow [2023-08-29 02:20:46,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 304 transitions, 2109 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:46,238 INFO L231 Difference]: Finished difference. Result has 118 places, 264 transitions, 1705 flow [2023-08-29 02:20:46,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1705, PETRI_PLACES=118, PETRI_TRANSITIONS=264} [2023-08-29 02:20:46,241 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-29 02:20:46,241 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 264 transitions, 1705 flow [2023-08-29 02:20:46,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:46,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:46,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:46,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:20:46,242 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:46,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:46,243 INFO L85 PathProgramCache]: Analyzing trace with hash -196459402, now seen corresponding path program 1 times [2023-08-29 02:20:46,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:46,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402617991] [2023-08-29 02:20:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:46,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:46,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:46,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402617991] [2023-08-29 02:20:46,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402617991] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:46,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:46,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:20:46,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014491159] [2023-08-29 02:20:46,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:46,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:20:46,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:20:46,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:20:46,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 494 [2023-08-29 02:20:46,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 264 transitions, 1705 flow. Second operand has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:46,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:46,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 494 [2023-08-29 02:20:46,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:47,160 INFO L130 PetriNetUnfolder]: 729/2736 cut-off events. [2023-08-29 02:20:47,160 INFO L131 PetriNetUnfolder]: For 2230/2297 co-relation queries the response was YES. [2023-08-29 02:20:47,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7165 conditions, 2736 events. 729/2736 cut-off events. For 2230/2297 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 20753 event pairs, 268 based on Foata normal form. 8/2615 useless extension candidates. Maximal degree in co-relation 7147. Up to 1113 conditions per place. [2023-08-29 02:20:47,179 INFO L137 encePairwiseOnDemand]: 491/494 looper letters, 49 selfloop transitions, 1 changer transitions 0/262 dead transitions. [2023-08-29 02:20:47,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 262 transitions, 1801 flow [2023-08-29 02:20:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:20:47,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:20:47,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2023-08-29 02:20:47,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5330634278002699 [2023-08-29 02:20:47,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2023-08-29 02:20:47,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2023-08-29 02:20:47,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:47,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2023-08-29 02:20:47,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:47,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:47,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:47,190 INFO L175 Difference]: Start difference. First operand has 118 places, 264 transitions, 1705 flow. Second operand 3 states and 790 transitions. [2023-08-29 02:20:47,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 262 transitions, 1801 flow [2023-08-29 02:20:47,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 262 transitions, 1729 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:47,210 INFO L231 Difference]: Finished difference. Result has 118 places, 262 transitions, 1631 flow [2023-08-29 02:20:47,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1629, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1631, PETRI_PLACES=118, PETRI_TRANSITIONS=262} [2023-08-29 02:20:47,211 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-29 02:20:47,211 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 262 transitions, 1631 flow [2023-08-29 02:20:47,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:47,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:47,212 INFO L208 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] [2023-08-29 02:20:47,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:20:47,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:47,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:47,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1183061363, now seen corresponding path program 1 times [2023-08-29 02:20:47,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:47,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619330675] [2023-08-29 02:20:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:47,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:47,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:47,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:47,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619330675] [2023-08-29 02:20:47,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619330675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:47,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:47,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:20:47,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393720303] [2023-08-29 02:20:47,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:47,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:20:47,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:47,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:20:47,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:20:47,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 494 [2023-08-29 02:20:47,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 262 transitions, 1631 flow. Second operand has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:47,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:47,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 494 [2023-08-29 02:20:47,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:48,378 INFO L130 PetriNetUnfolder]: 411/1628 cut-off events. [2023-08-29 02:20:48,378 INFO L131 PetriNetUnfolder]: For 1309/1330 co-relation queries the response was YES. [2023-08-29 02:20:48,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4253 conditions, 1628 events. 411/1628 cut-off events. For 1309/1330 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 11407 event pairs, 101 based on Foata normal form. 14/1581 useless extension candidates. Maximal degree in co-relation 4234. Up to 411 conditions per place. [2023-08-29 02:20:48,389 INFO L137 encePairwiseOnDemand]: 488/494 looper letters, 77 selfloop transitions, 6 changer transitions 0/236 dead transitions. [2023-08-29 02:20:48,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 236 transitions, 1511 flow [2023-08-29 02:20:48,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:20:48,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:20:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2023-08-29 02:20:48,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607287449392713 [2023-08-29 02:20:48,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2023-08-29 02:20:48,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2023-08-29 02:20:48,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:48,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2023-08-29 02:20:48,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:48,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:48,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:48,400 INFO L175 Difference]: Start difference. First operand has 118 places, 262 transitions, 1631 flow. Second operand 3 states and 831 transitions. [2023-08-29 02:20:48,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 236 transitions, 1511 flow [2023-08-29 02:20:48,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 236 transitions, 1452 flow, removed 29 selfloop flow, removed 1 redundant places. [2023-08-29 02:20:48,411 INFO L231 Difference]: Finished difference. Result has 120 places, 206 transitions, 1170 flow [2023-08-29 02:20:48,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1170, PETRI_PLACES=120, PETRI_TRANSITIONS=206} [2023-08-29 02:20:48,412 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 14 predicate places. [2023-08-29 02:20:48,412 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 206 transitions, 1170 flow [2023-08-29 02:20:48,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:48,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:48,413 INFO L208 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] [2023-08-29 02:20:48,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:20:48,414 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:48,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:48,414 INFO L85 PathProgramCache]: Analyzing trace with hash 393010943, now seen corresponding path program 1 times [2023-08-29 02:20:48,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:48,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629731868] [2023-08-29 02:20:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:48,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:48,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:48,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629731868] [2023-08-29 02:20:48,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629731868] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:48,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:48,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:20:48,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028920701] [2023-08-29 02:20:48,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:48,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:20:48,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:48,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:20:48,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:20:49,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 494 [2023-08-29 02:20:49,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 206 transitions, 1170 flow. Second operand has 6 states, 6 states have (on average 213.16666666666666) internal successors, (1279), 6 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:49,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:49,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 494 [2023-08-29 02:20:49,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:51,118 INFO L130 PetriNetUnfolder]: 828/2326 cut-off events. [2023-08-29 02:20:51,118 INFO L131 PetriNetUnfolder]: For 2272/2315 co-relation queries the response was YES. [2023-08-29 02:20:51,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6829 conditions, 2326 events. 828/2326 cut-off events. For 2272/2315 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 15824 event pairs, 101 based on Foata normal form. 66/2330 useless extension candidates. Maximal degree in co-relation 6809. Up to 860 conditions per place. [2023-08-29 02:20:51,137 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 205 selfloop transitions, 121 changer transitions 9/405 dead transitions. [2023-08-29 02:20:51,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 405 transitions, 2903 flow [2023-08-29 02:20:51,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:20:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:20:51,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1442 transitions. [2023-08-29 02:20:51,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4865047233468286 [2023-08-29 02:20:51,142 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1442 transitions. [2023-08-29 02:20:51,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1442 transitions. [2023-08-29 02:20:51,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:51,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1442 transitions. [2023-08-29 02:20:51,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.33333333333334) internal successors, (1442), 6 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:51,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:51,152 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:51,152 INFO L175 Difference]: Start difference. First operand has 120 places, 206 transitions, 1170 flow. Second operand 6 states and 1442 transitions. [2023-08-29 02:20:51,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 405 transitions, 2903 flow [2023-08-29 02:20:51,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 405 transitions, 2888 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:20:51,169 INFO L231 Difference]: Finished difference. Result has 128 places, 305 transitions, 2513 flow [2023-08-29 02:20:51,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1162, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2513, PETRI_PLACES=128, PETRI_TRANSITIONS=305} [2023-08-29 02:20:51,170 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 22 predicate places. [2023-08-29 02:20:51,170 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 305 transitions, 2513 flow [2023-08-29 02:20:51,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 213.16666666666666) internal successors, (1279), 6 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:51,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:51,171 INFO L208 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] [2023-08-29 02:20:51,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:20:51,171 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:51,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:51,172 INFO L85 PathProgramCache]: Analyzing trace with hash -765051543, now seen corresponding path program 1 times [2023-08-29 02:20:51,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:51,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307975956] [2023-08-29 02:20:51,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:51,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:51,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:51,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307975956] [2023-08-29 02:20:51,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307975956] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:51,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:51,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:20:51,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663714040] [2023-08-29 02:20:51,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:51,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:20:51,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:51,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:20:51,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:20:52,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 494 [2023-08-29 02:20:52,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 305 transitions, 2513 flow. Second operand has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:52,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:52,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 494 [2023-08-29 02:20:52,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:53,136 INFO L130 PetriNetUnfolder]: 686/2073 cut-off events. [2023-08-29 02:20:53,136 INFO L131 PetriNetUnfolder]: For 4451/4525 co-relation queries the response was YES. [2023-08-29 02:20:53,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7072 conditions, 2073 events. 686/2073 cut-off events. For 4451/4525 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 14110 event pairs, 151 based on Foata normal form. 26/2052 useless extension candidates. Maximal degree in co-relation 7048. Up to 1038 conditions per place. [2023-08-29 02:20:53,149 INFO L137 encePairwiseOnDemand]: 488/494 looper letters, 238 selfloop transitions, 17 changer transitions 0/352 dead transitions. [2023-08-29 02:20:53,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 352 transitions, 3205 flow [2023-08-29 02:20:53,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:20:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:20:53,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2023-08-29 02:20:53,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46524966261808365 [2023-08-29 02:20:53,154 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1379 transitions. [2023-08-29 02:20:53,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1379 transitions. [2023-08-29 02:20:53,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:53,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1379 transitions. [2023-08-29 02:20:53,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:53,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:53,163 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:53,163 INFO L175 Difference]: Start difference. First operand has 128 places, 305 transitions, 2513 flow. Second operand 6 states and 1379 transitions. [2023-08-29 02:20:53,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 352 transitions, 3205 flow [2023-08-29 02:20:53,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 352 transitions, 3187 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:53,183 INFO L231 Difference]: Finished difference. Result has 132 places, 304 transitions, 2527 flow [2023-08-29 02:20:53,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2527, PETRI_PLACES=132, PETRI_TRANSITIONS=304} [2023-08-29 02:20:53,186 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 26 predicate places. [2023-08-29 02:20:53,186 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 304 transitions, 2527 flow [2023-08-29 02:20:53,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:53,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:53,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:53,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:20:53,194 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:53,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:53,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1182460824, now seen corresponding path program 1 times [2023-08-29 02:20:53,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:53,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219507559] [2023-08-29 02:20:53,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:53,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:53,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:53,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:53,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219507559] [2023-08-29 02:20:53,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219507559] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:53,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:53,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:20:53,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023945430] [2023-08-29 02:20:53,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:53,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:20:53,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:53,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:20:53,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:20:53,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 494 [2023-08-29 02:20:53,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 304 transitions, 2527 flow. Second operand has 6 states, 6 states have (on average 193.0) internal successors, (1158), 6 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:53,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:53,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 494 [2023-08-29 02:20:53,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:55,220 INFO L130 PetriNetUnfolder]: 1492/3480 cut-off events. [2023-08-29 02:20:55,220 INFO L131 PetriNetUnfolder]: For 6050/6104 co-relation queries the response was YES. [2023-08-29 02:20:55,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12569 conditions, 3480 events. 1492/3480 cut-off events. For 6050/6104 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 22246 event pairs, 681 based on Foata normal form. 0/3382 useless extension candidates. Maximal degree in co-relation 12544. Up to 3018 conditions per place. [2023-08-29 02:20:55,240 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 303 selfloop transitions, 90 changer transitions 12/421 dead transitions. [2023-08-29 02:20:55,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 421 transitions, 3971 flow [2023-08-29 02:20:55,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:20:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:20:55,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2023-08-29 02:20:55,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43690958164642374 [2023-08-29 02:20:55,246 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1295 transitions. [2023-08-29 02:20:55,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1295 transitions. [2023-08-29 02:20:55,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:55,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1295 transitions. [2023-08-29 02:20:55,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:55,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:55,253 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:55,254 INFO L175 Difference]: Start difference. First operand has 132 places, 304 transitions, 2527 flow. Second operand 6 states and 1295 transitions. [2023-08-29 02:20:55,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 421 transitions, 3971 flow [2023-08-29 02:20:55,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 421 transitions, 3937 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 02:20:55,285 INFO L231 Difference]: Finished difference. Result has 136 places, 377 transitions, 3269 flow [2023-08-29 02:20:55,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3269, PETRI_PLACES=136, PETRI_TRANSITIONS=377} [2023-08-29 02:20:55,286 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 30 predicate places. [2023-08-29 02:20:55,286 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 377 transitions, 3269 flow [2023-08-29 02:20:55,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.0) internal successors, (1158), 6 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:55,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:55,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:55,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:20:55,287 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:55,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:55,288 INFO L85 PathProgramCache]: Analyzing trace with hash -989259866, now seen corresponding path program 1 times [2023-08-29 02:20:55,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:55,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449536893] [2023-08-29 02:20:55,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:55,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:56,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:56,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449536893] [2023-08-29 02:20:56,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449536893] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:56,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:56,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 02:20:56,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197296965] [2023-08-29 02:20:56,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:56,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:20:56,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:56,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:20:56,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:20:57,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 494 [2023-08-29 02:20:57,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 377 transitions, 3269 flow. Second operand has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:57,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:57,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 494 [2023-08-29 02:20:57,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:59,050 INFO L130 PetriNetUnfolder]: 1395/3330 cut-off events. [2023-08-29 02:20:59,050 INFO L131 PetriNetUnfolder]: For 7110/7189 co-relation queries the response was YES. [2023-08-29 02:20:59,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12847 conditions, 3330 events. 1395/3330 cut-off events. For 7110/7189 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 21809 event pairs, 407 based on Foata normal form. 0/3291 useless extension candidates. Maximal degree in co-relation 12818. Up to 2260 conditions per place. [2023-08-29 02:20:59,071 INFO L137 encePairwiseOnDemand]: 481/494 looper letters, 402 selfloop transitions, 57 changer transitions 14/489 dead transitions. [2023-08-29 02:20:59,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 489 transitions, 4921 flow [2023-08-29 02:20:59,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 02:20:59,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 02:20:59,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1721 transitions. [2023-08-29 02:20:59,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.387089518668466 [2023-08-29 02:20:59,076 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1721 transitions. [2023-08-29 02:20:59,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1721 transitions. [2023-08-29 02:20:59,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:59,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1721 transitions. [2023-08-29 02:20:59,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 191.22222222222223) internal successors, (1721), 9 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:59,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 494.0) internal successors, (4940), 10 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:59,087 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 494.0) internal successors, (4940), 10 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:59,087 INFO L175 Difference]: Start difference. First operand has 136 places, 377 transitions, 3269 flow. Second operand 9 states and 1721 transitions. [2023-08-29 02:20:59,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 489 transitions, 4921 flow [2023-08-29 02:20:59,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 489 transitions, 4761 flow, removed 80 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:59,143 INFO L231 Difference]: Finished difference. Result has 148 places, 385 transitions, 3381 flow [2023-08-29 02:20:59,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=3109, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3381, PETRI_PLACES=148, PETRI_TRANSITIONS=385} [2023-08-29 02:20:59,146 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 42 predicate places. [2023-08-29 02:20:59,146 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 385 transitions, 3381 flow [2023-08-29 02:20:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:59,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:59,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:59,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:20:59,148 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:20:59,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:59,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1150444369, now seen corresponding path program 1 times [2023-08-29 02:20:59,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:59,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138068996] [2023-08-29 02:20:59,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:59,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:00,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:00,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:00,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138068996] [2023-08-29 02:21:00,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138068996] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:00,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:00,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:00,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27201295] [2023-08-29 02:21:00,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:00,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:00,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:00,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:00,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:01,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 02:21:01,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 385 transitions, 3381 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:01,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:01,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 02:21:01,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:03,556 INFO L130 PetriNetUnfolder]: 1084/3042 cut-off events. [2023-08-29 02:21:03,556 INFO L131 PetriNetUnfolder]: For 9190/9290 co-relation queries the response was YES. [2023-08-29 02:21:03,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12242 conditions, 3042 events. 1084/3042 cut-off events. For 9190/9290 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 21954 event pairs, 167 based on Foata normal form. 20/3027 useless extension candidates. Maximal degree in co-relation 12208. Up to 1360 conditions per place. [2023-08-29 02:21:03,577 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 303 selfloop transitions, 90 changer transitions 9/522 dead transitions. [2023-08-29 02:21:03,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 522 transitions, 5199 flow [2023-08-29 02:21:03,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:21:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:21:03,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2092 transitions. [2023-08-29 02:21:03,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234817813765182 [2023-08-29 02:21:03,586 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2092 transitions. [2023-08-29 02:21:03,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2092 transitions. [2023-08-29 02:21:03,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:03,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2092 transitions. [2023-08-29 02:21:03,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 209.2) internal successors, (2092), 10 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:03,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 494.0) internal successors, (5434), 11 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:03,598 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 494.0) internal successors, (5434), 11 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:03,598 INFO L175 Difference]: Start difference. First operand has 148 places, 385 transitions, 3381 flow. Second operand 10 states and 2092 transitions. [2023-08-29 02:21:03,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 522 transitions, 5199 flow [2023-08-29 02:21:03,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 522 transitions, 5173 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 02:21:03,653 INFO L231 Difference]: Finished difference. Result has 162 places, 436 transitions, 4364 flow [2023-08-29 02:21:03,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=3373, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4364, PETRI_PLACES=162, PETRI_TRANSITIONS=436} [2023-08-29 02:21:03,655 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 56 predicate places. [2023-08-29 02:21:03,655 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 436 transitions, 4364 flow [2023-08-29 02:21:03,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:03,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:03,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:03,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 02:21:03,656 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:03,657 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:03,657 INFO L85 PathProgramCache]: Analyzing trace with hash 539406891, now seen corresponding path program 2 times [2023-08-29 02:21:03,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:03,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563250921] [2023-08-29 02:21:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:03,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:04,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:04,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:04,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563250921] [2023-08-29 02:21:04,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563250921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:04,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:04,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:21:04,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118483695] [2023-08-29 02:21:04,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:04,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:21:04,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:04,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:21:04,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:21:05,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 494 [2023-08-29 02:21:05,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 436 transitions, 4364 flow. Second operand has 12 states, 12 states have (on average 191.66666666666666) internal successors, (2300), 12 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:05,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:05,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 494 [2023-08-29 02:21:05,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:08,214 INFO L130 PetriNetUnfolder]: 1163/3243 cut-off events. [2023-08-29 02:21:08,214 INFO L131 PetriNetUnfolder]: For 13128/13241 co-relation queries the response was YES. [2023-08-29 02:21:08,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13965 conditions, 3243 events. 1163/3243 cut-off events. For 13128/13241 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 23557 event pairs, 206 based on Foata normal form. 32/3239 useless extension candidates. Maximal degree in co-relation 13924. Up to 1032 conditions per place. [2023-08-29 02:21:08,232 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 344 selfloop transitions, 131 changer transitions 10/604 dead transitions. [2023-08-29 02:21:08,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 604 transitions, 6614 flow [2023-08-29 02:21:08,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 02:21:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 02:21:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3767 transitions. [2023-08-29 02:21:08,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40134242488813127 [2023-08-29 02:21:08,242 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3767 transitions. [2023-08-29 02:21:08,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3767 transitions. [2023-08-29 02:21:08,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:08,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3767 transitions. [2023-08-29 02:21:08,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 198.26315789473685) internal successors, (3767), 19 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:08,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 494.0) internal successors, (9880), 20 states have internal predecessors, (9880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:08,261 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 494.0) internal successors, (9880), 20 states have internal predecessors, (9880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:08,261 INFO L175 Difference]: Start difference. First operand has 162 places, 436 transitions, 4364 flow. Second operand 19 states and 3767 transitions. [2023-08-29 02:21:08,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 604 transitions, 6614 flow [2023-08-29 02:21:08,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 604 transitions, 6592 flow, removed 11 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:08,329 INFO L231 Difference]: Finished difference. Result has 195 places, 500 transitions, 5455 flow [2023-08-29 02:21:08,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=4356, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5455, PETRI_PLACES=195, PETRI_TRANSITIONS=500} [2023-08-29 02:21:08,330 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 89 predicate places. [2023-08-29 02:21:08,330 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 500 transitions, 5455 flow [2023-08-29 02:21:08,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 191.66666666666666) internal successors, (2300), 12 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:08,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:08,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:08,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 02:21:08,331 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:08,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:08,332 INFO L85 PathProgramCache]: Analyzing trace with hash 918316159, now seen corresponding path program 3 times [2023-08-29 02:21:08,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:08,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313320918] [2023-08-29 02:21:08,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:08,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:09,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:09,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:09,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313320918] [2023-08-29 02:21:09,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313320918] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:09,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:09,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:09,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574069414] [2023-08-29 02:21:09,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:09,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:09,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:09,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:09,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:10,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 02:21:10,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 500 transitions, 5455 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:10,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:10,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 02:21:10,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:13,344 INFO L130 PetriNetUnfolder]: 1326/3670 cut-off events. [2023-08-29 02:21:13,344 INFO L131 PetriNetUnfolder]: For 20534/20694 co-relation queries the response was YES. [2023-08-29 02:21:13,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17420 conditions, 3670 events. 1326/3670 cut-off events. For 20534/20694 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 27786 event pairs, 184 based on Foata normal form. 56/3685 useless extension candidates. Maximal degree in co-relation 17364. Up to 1466 conditions per place. [2023-08-29 02:21:13,367 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 381 selfloop transitions, 127 changer transitions 9/638 dead transitions. [2023-08-29 02:21:13,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 638 transitions, 7783 flow [2023-08-29 02:21:13,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:21:13,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:21:13,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2495 transitions. [2023-08-29 02:21:13,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4208839406207827 [2023-08-29 02:21:13,374 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2495 transitions. [2023-08-29 02:21:13,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2495 transitions. [2023-08-29 02:21:13,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:13,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2495 transitions. [2023-08-29 02:21:13,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 207.91666666666666) internal successors, (2495), 12 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:13,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:13,387 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:13,387 INFO L175 Difference]: Start difference. First operand has 195 places, 500 transitions, 5455 flow. Second operand 12 states and 2495 transitions. [2023-08-29 02:21:13,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 638 transitions, 7783 flow [2023-08-29 02:21:13,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 638 transitions, 7743 flow, removed 20 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:13,505 INFO L231 Difference]: Finished difference. Result has 211 places, 548 transitions, 6678 flow [2023-08-29 02:21:13,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=5417, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6678, PETRI_PLACES=211, PETRI_TRANSITIONS=548} [2023-08-29 02:21:13,506 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 105 predicate places. [2023-08-29 02:21:13,506 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 548 transitions, 6678 flow [2023-08-29 02:21:13,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:13,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:13,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:13,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 02:21:13,507 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:13,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:13,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1321596577, now seen corresponding path program 4 times [2023-08-29 02:21:13,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:13,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214102028] [2023-08-29 02:21:13,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:13,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:14,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:14,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214102028] [2023-08-29 02:21:14,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214102028] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:14,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:14,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:14,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602749470] [2023-08-29 02:21:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:14,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:14,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:15,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 02:21:15,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 548 transitions, 6678 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:15,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:15,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 02:21:15,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:18,099 INFO L130 PetriNetUnfolder]: 1508/4174 cut-off events. [2023-08-29 02:21:18,099 INFO L131 PetriNetUnfolder]: For 30156/30336 co-relation queries the response was YES. [2023-08-29 02:21:18,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20929 conditions, 4174 events. 1508/4174 cut-off events. For 30156/30336 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 32774 event pairs, 216 based on Foata normal form. 47/4174 useless extension candidates. Maximal degree in co-relation 20868. Up to 1417 conditions per place. [2023-08-29 02:21:18,131 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 423 selfloop transitions, 171 changer transitions 9/724 dead transitions. [2023-08-29 02:21:18,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 724 transitions, 9958 flow [2023-08-29 02:21:18,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:21:18,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:21:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2904 transitions. [2023-08-29 02:21:18,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4198958935801041 [2023-08-29 02:21:18,137 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2904 transitions. [2023-08-29 02:21:18,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2904 transitions. [2023-08-29 02:21:18,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:18,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2904 transitions. [2023-08-29 02:21:18,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 207.42857142857142) internal successors, (2904), 14 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:18,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 494.0) internal successors, (7410), 15 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:18,149 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 494.0) internal successors, (7410), 15 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:18,150 INFO L175 Difference]: Start difference. First operand has 211 places, 548 transitions, 6678 flow. Second operand 14 states and 2904 transitions. [2023-08-29 02:21:18,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 724 transitions, 9958 flow [2023-08-29 02:21:18,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 724 transitions, 9904 flow, removed 10 selfloop flow, removed 4 redundant places. [2023-08-29 02:21:18,415 INFO L231 Difference]: Finished difference. Result has 230 places, 613 transitions, 8467 flow [2023-08-29 02:21:18,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=6634, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8467, PETRI_PLACES=230, PETRI_TRANSITIONS=613} [2023-08-29 02:21:18,415 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 124 predicate places. [2023-08-29 02:21:18,416 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 613 transitions, 8467 flow [2023-08-29 02:21:18,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:18,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:18,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:18,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 02:21:18,417 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:18,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:18,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1738382545, now seen corresponding path program 5 times [2023-08-29 02:21:18,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:18,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544431616] [2023-08-29 02:21:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:18,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:19,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:19,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544431616] [2023-08-29 02:21:19,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544431616] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:19,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:19,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:19,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536815070] [2023-08-29 02:21:19,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:19,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:19,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:19,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:19,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:20,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 02:21:20,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 613 transitions, 8467 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:20,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:20,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 02:21:20,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:23,311 INFO L130 PetriNetUnfolder]: 1652/4567 cut-off events. [2023-08-29 02:21:23,311 INFO L131 PetriNetUnfolder]: For 43040/43276 co-relation queries the response was YES. [2023-08-29 02:21:23,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24228 conditions, 4567 events. 1652/4567 cut-off events. For 43040/43276 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 37112 event pairs, 226 based on Foata normal form. 69/4586 useless extension candidates. Maximal degree in co-relation 24157. Up to 1709 conditions per place. [2023-08-29 02:21:23,354 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 433 selfloop transitions, 197 changer transitions 9/760 dead transitions. [2023-08-29 02:21:23,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 760 transitions, 11554 flow [2023-08-29 02:21:23,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:21:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:21:23,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2700 transitions. [2023-08-29 02:21:23,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4204297726564933 [2023-08-29 02:21:23,361 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2700 transitions. [2023-08-29 02:21:23,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2700 transitions. [2023-08-29 02:21:23,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:23,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2700 transitions. [2023-08-29 02:21:23,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 207.69230769230768) internal successors, (2700), 13 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:23,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 494.0) internal successors, (6916), 14 states have internal predecessors, (6916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:23,370 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 494.0) internal successors, (6916), 14 states have internal predecessors, (6916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:23,371 INFO L175 Difference]: Start difference. First operand has 230 places, 613 transitions, 8467 flow. Second operand 13 states and 2700 transitions. [2023-08-29 02:21:23,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 760 transitions, 11554 flow [2023-08-29 02:21:23,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 760 transitions, 11470 flow, removed 40 selfloop flow, removed 1 redundant places. [2023-08-29 02:21:23,560 INFO L231 Difference]: Finished difference. Result has 249 places, 659 transitions, 10191 flow [2023-08-29 02:21:23,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=8383, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10191, PETRI_PLACES=249, PETRI_TRANSITIONS=659} [2023-08-29 02:21:23,561 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 143 predicate places. [2023-08-29 02:21:23,561 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 659 transitions, 10191 flow [2023-08-29 02:21:23,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:23,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:23,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:23,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 02:21:23,562 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:23,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:23,562 INFO L85 PathProgramCache]: Analyzing trace with hash -995187386, now seen corresponding path program 1 times [2023-08-29 02:21:23,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:23,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163331897] [2023-08-29 02:21:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:23,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:24,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:24,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163331897] [2023-08-29 02:21:24,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163331897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:24,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:24,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:24,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575085111] [2023-08-29 02:21:24,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:24,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:24,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:24,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:24,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:25,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 02:21:25,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 659 transitions, 10191 flow. Second operand has 10 states, 10 states have (on average 199.3) internal successors, (1993), 10 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:25,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:25,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 02:21:25,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:27,525 INFO L130 PetriNetUnfolder]: 1644/4497 cut-off events. [2023-08-29 02:21:27,525 INFO L131 PetriNetUnfolder]: For 53535/53775 co-relation queries the response was YES. [2023-08-29 02:21:27,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25125 conditions, 4497 events. 1644/4497 cut-off events. For 53535/53775 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 36301 event pairs, 164 based on Foata normal form. 71/4525 useless extension candidates. Maximal degree in co-relation 25046. Up to 1110 conditions per place. [2023-08-29 02:21:27,565 INFO L137 encePairwiseOnDemand]: 476/494 looper letters, 406 selfloop transitions, 238 changer transitions 16/781 dead transitions. [2023-08-29 02:21:27,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 781 transitions, 12310 flow [2023-08-29 02:21:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 02:21:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 02:21:27,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4326 transitions. [2023-08-29 02:21:27,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41700404858299595 [2023-08-29 02:21:27,569 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4326 transitions. [2023-08-29 02:21:27,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4326 transitions. [2023-08-29 02:21:27,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:27,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4326 transitions. [2023-08-29 02:21:27,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 206.0) internal successors, (4326), 21 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:27,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:27,583 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:27,583 INFO L175 Difference]: Start difference. First operand has 249 places, 659 transitions, 10191 flow. Second operand 21 states and 4326 transitions. [2023-08-29 02:21:27,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 781 transitions, 12310 flow [2023-08-29 02:21:27,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 781 transitions, 12217 flow, removed 41 selfloop flow, removed 2 redundant places. [2023-08-29 02:21:27,867 INFO L231 Difference]: Finished difference. Result has 272 places, 667 transitions, 10934 flow [2023-08-29 02:21:27,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=10098, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=10934, PETRI_PLACES=272, PETRI_TRANSITIONS=667} [2023-08-29 02:21:27,868 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 166 predicate places. [2023-08-29 02:21:27,868 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 667 transitions, 10934 flow [2023-08-29 02:21:27,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 199.3) internal successors, (1993), 10 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:27,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:27,869 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:27,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 02:21:27,869 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:27,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:27,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1577471982, now seen corresponding path program 1 times [2023-08-29 02:21:27,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:27,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328964376] [2023-08-29 02:21:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:27,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:29,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:29,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328964376] [2023-08-29 02:21:29,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328964376] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:29,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:29,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:21:29,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125345064] [2023-08-29 02:21:29,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:29,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:21:29,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:29,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:21:29,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:21:30,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 02:21:30,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 667 transitions, 10934 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:30,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:30,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 02:21:30,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:34,095 INFO L130 PetriNetUnfolder]: 1859/5399 cut-off events. [2023-08-29 02:21:34,095 INFO L131 PetriNetUnfolder]: For 80262/80543 co-relation queries the response was YES. [2023-08-29 02:21:34,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31298 conditions, 5399 events. 1859/5399 cut-off events. For 80262/80543 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 45821 event pairs, 209 based on Foata normal form. 44/5362 useless extension candidates. Maximal degree in co-relation 31214. Up to 1343 conditions per place. [2023-08-29 02:21:34,143 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 499 selfloop transitions, 169 changer transitions 15/895 dead transitions. [2023-08-29 02:21:34,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 895 transitions, 15552 flow [2023-08-29 02:21:34,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-29 02:21:34,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-29 02:21:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4419 transitions. [2023-08-29 02:21:34,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40660655134339346 [2023-08-29 02:21:34,147 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4419 transitions. [2023-08-29 02:21:34,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4419 transitions. [2023-08-29 02:21:34,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:34,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4419 transitions. [2023-08-29 02:21:34,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 200.86363636363637) internal successors, (4419), 22 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:34,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:34,157 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:34,158 INFO L175 Difference]: Start difference. First operand has 272 places, 667 transitions, 10934 flow. Second operand 22 states and 4419 transitions. [2023-08-29 02:21:34,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 895 transitions, 15552 flow [2023-08-29 02:21:34,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 895 transitions, 15122 flow, removed 58 selfloop flow, removed 25 redundant places. [2023-08-29 02:21:34,398 INFO L231 Difference]: Finished difference. Result has 272 places, 737 transitions, 12405 flow [2023-08-29 02:21:34,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=10511, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=12405, PETRI_PLACES=272, PETRI_TRANSITIONS=737} [2023-08-29 02:21:34,399 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 166 predicate places. [2023-08-29 02:21:34,399 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 737 transitions, 12405 flow [2023-08-29 02:21:34,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:34,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:34,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:34,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 02:21:34,400 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:34,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:34,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1097261804, now seen corresponding path program 2 times [2023-08-29 02:21:34,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:34,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584328045] [2023-08-29 02:21:34,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:34,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:35,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:35,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:35,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584328045] [2023-08-29 02:21:35,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584328045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:35,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:35,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:21:35,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203704162] [2023-08-29 02:21:35,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:35,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:21:35,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:35,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:21:35,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:21:36,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 02:21:36,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 737 transitions, 12405 flow. Second operand has 11 states, 11 states have (on average 196.54545454545453) internal successors, (2162), 11 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:36,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:36,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 02:21:36,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:39,149 INFO L130 PetriNetUnfolder]: 2064/5966 cut-off events. [2023-08-29 02:21:39,150 INFO L131 PetriNetUnfolder]: For 88612/88926 co-relation queries the response was YES. [2023-08-29 02:21:39,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34626 conditions, 5966 events. 2064/5966 cut-off events. For 88612/88926 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 51328 event pairs, 206 based on Foata normal form. 57/5939 useless extension candidates. Maximal degree in co-relation 34555. Up to 1501 conditions per place. [2023-08-29 02:21:39,201 INFO L137 encePairwiseOnDemand]: 479/494 looper letters, 550 selfloop transitions, 159 changer transitions 41/962 dead transitions. [2023-08-29 02:21:39,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 962 transitions, 16420 flow [2023-08-29 02:21:39,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 02:21:39,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 02:21:39,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4257 transitions. [2023-08-29 02:21:39,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4103528050896472 [2023-08-29 02:21:39,206 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4257 transitions. [2023-08-29 02:21:39,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4257 transitions. [2023-08-29 02:21:39,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:39,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4257 transitions. [2023-08-29 02:21:39,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 202.71428571428572) internal successors, (4257), 21 states have internal predecessors, (4257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:39,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:39,220 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:39,220 INFO L175 Difference]: Start difference. First operand has 272 places, 737 transitions, 12405 flow. Second operand 21 states and 4257 transitions. [2023-08-29 02:21:39,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 962 transitions, 16420 flow [2023-08-29 02:21:39,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 962 transitions, 16125 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-29 02:21:39,492 INFO L231 Difference]: Finished difference. Result has 300 places, 781 transitions, 12915 flow [2023-08-29 02:21:39,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=12144, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=737, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12915, PETRI_PLACES=300, PETRI_TRANSITIONS=781} [2023-08-29 02:21:39,493 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 194 predicate places. [2023-08-29 02:21:39,493 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 781 transitions, 12915 flow [2023-08-29 02:21:39,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 196.54545454545453) internal successors, (2162), 11 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:39,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:39,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:39,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 02:21:39,494 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:39,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:39,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1184076250, now seen corresponding path program 3 times [2023-08-29 02:21:39,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:39,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050323253] [2023-08-29 02:21:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:39,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:41,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:41,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050323253] [2023-08-29 02:21:41,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050323253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:41,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:41,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:21:41,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894094876] [2023-08-29 02:21:41,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:41,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:21:41,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:41,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:21:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:21:43,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 02:21:43,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 781 transitions, 12915 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:43,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:43,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 02:21:43,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:48,318 INFO L130 PetriNetUnfolder]: 2434/6939 cut-off events. [2023-08-29 02:21:48,318 INFO L131 PetriNetUnfolder]: For 108652/109040 co-relation queries the response was YES. [2023-08-29 02:21:48,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41738 conditions, 6939 events. 2434/6939 cut-off events. For 108652/109040 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 61297 event pairs, 265 based on Foata normal form. 71/6911 useless extension candidates. Maximal degree in co-relation 41656. Up to 1826 conditions per place. [2023-08-29 02:21:48,396 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 585 selfloop transitions, 194 changer transitions 16/1007 dead transitions. [2023-08-29 02:21:48,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1007 transitions, 18056 flow [2023-08-29 02:21:48,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-29 02:21:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-29 02:21:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4816 transitions. [2023-08-29 02:21:48,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40620782726045884 [2023-08-29 02:21:48,402 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4816 transitions. [2023-08-29 02:21:48,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4816 transitions. [2023-08-29 02:21:48,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:48,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4816 transitions. [2023-08-29 02:21:48,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 200.66666666666666) internal successors, (4816), 24 states have internal predecessors, (4816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:48,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:48,417 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:48,418 INFO L175 Difference]: Start difference. First operand has 300 places, 781 transitions, 12915 flow. Second operand 24 states and 4816 transitions. [2023-08-29 02:21:48,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1007 transitions, 18056 flow [2023-08-29 02:21:48,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1007 transitions, 17863 flow, removed 15 selfloop flow, removed 5 redundant places. [2023-08-29 02:21:48,857 INFO L231 Difference]: Finished difference. Result has 323 places, 846 transitions, 14935 flow [2023-08-29 02:21:48,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=12727, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=14935, PETRI_PLACES=323, PETRI_TRANSITIONS=846} [2023-08-29 02:21:48,858 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 217 predicate places. [2023-08-29 02:21:48,859 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 846 transitions, 14935 flow [2023-08-29 02:21:48,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:48,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:48,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:48,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 02:21:48,860 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:48,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:48,860 INFO L85 PathProgramCache]: Analyzing trace with hash 502882784, now seen corresponding path program 1 times [2023-08-29 02:21:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:48,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777749763] [2023-08-29 02:21:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:50,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:50,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777749763] [2023-08-29 02:21:50,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777749763] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:50,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:50,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:21:50,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957419627] [2023-08-29 02:21:50,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:50,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:21:50,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:50,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:21:50,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:21:51,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 494 [2023-08-29 02:21:51,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 846 transitions, 14935 flow. Second operand has 11 states, 11 states have (on average 173.54545454545453) internal successors, (1909), 11 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:51,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:51,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 494 [2023-08-29 02:21:51,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:56,123 INFO L130 PetriNetUnfolder]: 4306/9962 cut-off events. [2023-08-29 02:21:56,123 INFO L131 PetriNetUnfolder]: For 126491/126737 co-relation queries the response was YES. [2023-08-29 02:21:56,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58135 conditions, 9962 events. 4306/9962 cut-off events. For 126491/126737 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 81060 event pairs, 1224 based on Foata normal form. 31/9940 useless extension candidates. Maximal degree in co-relation 58049. Up to 2277 conditions per place. [2023-08-29 02:21:56,211 INFO L137 encePairwiseOnDemand]: 470/494 looper letters, 792 selfloop transitions, 216 changer transitions 46/1080 dead transitions. [2023-08-29 02:21:56,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1080 transitions, 19202 flow [2023-08-29 02:21:56,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:21:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:21:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2342 transitions. [2023-08-29 02:21:56,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3950742240215924 [2023-08-29 02:21:56,214 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2342 transitions. [2023-08-29 02:21:56,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2342 transitions. [2023-08-29 02:21:56,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:56,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2342 transitions. [2023-08-29 02:21:56,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 195.16666666666666) internal successors, (2342), 12 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:56,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:56,220 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:56,220 INFO L175 Difference]: Start difference. First operand has 323 places, 846 transitions, 14935 flow. Second operand 12 states and 2342 transitions. [2023-08-29 02:21:56,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1080 transitions, 19202 flow [2023-08-29 02:21:56,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1080 transitions, 19001 flow, removed 9 selfloop flow, removed 15 redundant places. [2023-08-29 02:21:56,674 INFO L231 Difference]: Finished difference. Result has 323 places, 854 transitions, 15425 flow [2023-08-29 02:21:56,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=14739, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15425, PETRI_PLACES=323, PETRI_TRANSITIONS=854} [2023-08-29 02:21:56,676 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 217 predicate places. [2023-08-29 02:21:56,676 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 854 transitions, 15425 flow [2023-08-29 02:21:56,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 173.54545454545453) internal successors, (1909), 11 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:56,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:56,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:56,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 02:21:56,677 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:21:56,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:56,677 INFO L85 PathProgramCache]: Analyzing trace with hash 747243456, now seen corresponding path program 4 times [2023-08-29 02:21:56,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:56,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630962532] [2023-08-29 02:21:56,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:56,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:58,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:58,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630962532] [2023-08-29 02:21:58,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630962532] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:58,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:58,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:21:58,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130315147] [2023-08-29 02:21:58,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:58,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:21:58,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:58,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:21:58,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:22:00,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 02:22:00,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 854 transitions, 15425 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:00,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:00,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 02:22:00,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:04,942 INFO L130 PetriNetUnfolder]: 2815/8003 cut-off events. [2023-08-29 02:22:04,942 INFO L131 PetriNetUnfolder]: For 146467/146942 co-relation queries the response was YES. [2023-08-29 02:22:05,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52289 conditions, 8003 events. 2815/8003 cut-off events. For 146467/146942 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 72800 event pairs, 298 based on Foata normal form. 75/7961 useless extension candidates. Maximal degree in co-relation 52198. Up to 2154 conditions per place. [2023-08-29 02:22:05,050 INFO L137 encePairwiseOnDemand]: 473/494 looper letters, 660 selfloop transitions, 216 changer transitions 16/1108 dead transitions. [2023-08-29 02:22:05,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1108 transitions, 21640 flow [2023-08-29 02:22:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-29 02:22:05,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-29 02:22:05,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4631 transitions. [2023-08-29 02:22:05,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40758669248371765 [2023-08-29 02:22:05,055 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4631 transitions. [2023-08-29 02:22:05,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4631 transitions. [2023-08-29 02:22:05,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:05,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4631 transitions. [2023-08-29 02:22:05,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 201.34782608695653) internal successors, (4631), 23 states have internal predecessors, (4631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:05,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 494.0) internal successors, (11856), 24 states have internal predecessors, (11856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:05,065 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 494.0) internal successors, (11856), 24 states have internal predecessors, (11856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:05,065 INFO L175 Difference]: Start difference. First operand has 323 places, 854 transitions, 15425 flow. Second operand 23 states and 4631 transitions. [2023-08-29 02:22:05,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1108 transitions, 21640 flow [2023-08-29 02:22:05,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 1108 transitions, 21418 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-08-29 02:22:05,505 INFO L231 Difference]: Finished difference. Result has 347 places, 934 transitions, 17990 flow [2023-08-29 02:22:05,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=15239, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=17990, PETRI_PLACES=347, PETRI_TRANSITIONS=934} [2023-08-29 02:22:05,506 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 241 predicate places. [2023-08-29 02:22:05,506 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 934 transitions, 17990 flow [2023-08-29 02:22:05,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:05,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:05,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:05,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 02:22:05,507 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:22:05,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:05,508 INFO L85 PathProgramCache]: Analyzing trace with hash 471059486, now seen corresponding path program 5 times [2023-08-29 02:22:05,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:05,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259012530] [2023-08-29 02:22:05,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:05,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:06,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:06,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259012530] [2023-08-29 02:22:06,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259012530] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:06,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:06,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:22:06,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27851106] [2023-08-29 02:22:06,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:06,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:22:06,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:06,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:22:06,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:22:08,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 02:22:08,499 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 934 transitions, 17990 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:08,499 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:08,499 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 02:22:08,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:12,853 INFO L130 PetriNetUnfolder]: 3171/8979 cut-off events. [2023-08-29 02:22:12,853 INFO L131 PetriNetUnfolder]: For 178932/179506 co-relation queries the response was YES. [2023-08-29 02:22:12,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59800 conditions, 8979 events. 3171/8979 cut-off events. For 178932/179506 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 83669 event pairs, 312 based on Foata normal form. 108/8959 useless extension candidates. Maximal degree in co-relation 59702. Up to 2465 conditions per place. [2023-08-29 02:22:12,969 INFO L137 encePairwiseOnDemand]: 474/494 looper letters, 718 selfloop transitions, 228 changer transitions 19/1181 dead transitions. [2023-08-29 02:22:12,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 1181 transitions, 24617 flow [2023-08-29 02:22:12,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-29 02:22:12,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-29 02:22:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4444 transitions. [2023-08-29 02:22:12,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4089068825910931 [2023-08-29 02:22:12,974 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4444 transitions. [2023-08-29 02:22:12,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4444 transitions. [2023-08-29 02:22:12,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:12,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4444 transitions. [2023-08-29 02:22:12,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 202.0) internal successors, (4444), 22 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:12,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:12,988 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:12,989 INFO L175 Difference]: Start difference. First operand has 347 places, 934 transitions, 17990 flow. Second operand 22 states and 4444 transitions. [2023-08-29 02:22:12,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 1181 transitions, 24617 flow [2023-08-29 02:22:13,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1181 transitions, 24351 flow, removed 27 selfloop flow, removed 12 redundant places. [2023-08-29 02:22:13,604 INFO L231 Difference]: Finished difference. Result has 364 places, 997 transitions, 20466 flow [2023-08-29 02:22:13,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=17725, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=710, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=20466, PETRI_PLACES=364, PETRI_TRANSITIONS=997} [2023-08-29 02:22:13,606 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 258 predicate places. [2023-08-29 02:22:13,606 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 997 transitions, 20466 flow [2023-08-29 02:22:13,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:13,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:13,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:13,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 02:22:13,607 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 02:22:13,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:13,608 INFO L85 PathProgramCache]: Analyzing trace with hash 745080649, now seen corresponding path program 1 times [2023-08-29 02:22:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:13,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763077298] [2023-08-29 02:22:13,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:13,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:22:13,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 02:22:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:22:13,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 02:22:13,774 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 02:22:13,776 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (36 of 37 remaining) [2023-08-29 02:22:13,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-08-29 02:22:13,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-08-29 02:22:13,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-08-29 02:22:13,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-08-29 02:22:13,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-08-29 02:22:13,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-08-29 02:22:13,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-08-29 02:22:13,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-08-29 02:22:13,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-08-29 02:22:13,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-08-29 02:22:13,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-08-29 02:22:13,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-08-29 02:22:13,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-08-29 02:22:13,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-08-29 02:22:13,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-08-29 02:22:13,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-08-29 02:22:13,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-08-29 02:22:13,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-08-29 02:22:13,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-08-29 02:22:13,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-08-29 02:22:13,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 37 remaining) [2023-08-29 02:22:13,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-08-29 02:22:13,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-08-29 02:22:13,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-08-29 02:22:13,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-08-29 02:22:13,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-08-29 02:22:13,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-08-29 02:22:13,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-08-29 02:22:13,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-08-29 02:22:13,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-08-29 02:22:13,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-08-29 02:22:13,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-08-29 02:22:13,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-08-29 02:22:13,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-08-29 02:22:13,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-08-29 02:22:13,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-08-29 02:22:13,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 02:22:13,791 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:13,798 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 02:22:13,798 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:22:13,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:22:13 BasicIcfg [2023-08-29 02:22:13,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:22:13,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:22:13,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:22:13,875 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:22:13,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:14:19" (3/4) ... [2023-08-29 02:22:13,877 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 02:22:13,877 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:22:13,879 INFO L158 Benchmark]: Toolchain (without parser) took 476184.45ms. Allocated memory was 69.2MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 44.3MB in the beginning and 339.0MB in the end (delta: -294.7MB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2023-08-29 02:22:13,880 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:22:13,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 733.74ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.1MB in the beginning and 37.9MB in the end (delta: 6.2MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-08-29 02:22:13,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.50ms. Allocated memory is still 86.0MB. Free memory was 37.9MB in the beginning and 62.3MB in the end (delta: -24.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-08-29 02:22:13,881 INFO L158 Benchmark]: Boogie Preprocessor took 76.99ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 59.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 02:22:13,881 INFO L158 Benchmark]: RCFGBuilder took 728.94ms. Allocated memory is still 86.0MB. Free memory was 59.1MB in the beginning and 56.5MB in the end (delta: 2.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-08-29 02:22:13,881 INFO L158 Benchmark]: TraceAbstraction took 474540.93ms. Allocated memory was 86.0MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 55.5MB in the beginning and 339.0MB in the end (delta: -283.5MB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2023-08-29 02:22:13,882 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 2.1GB. Free memory is still 339.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:22:13,883 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 733.74ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.1MB in the beginning and 37.9MB in the end (delta: 6.2MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.50ms. Allocated memory is still 86.0MB. Free memory was 37.9MB in the beginning and 62.3MB in the end (delta: -24.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.99ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 59.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 728.94ms. Allocated memory is still 86.0MB. Free memory was 59.1MB in the beginning and 56.5MB in the end (delta: 2.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 474540.93ms. Allocated memory was 86.0MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 55.5MB in the beginning and 339.0MB in the end (delta: -283.5MB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 2.1GB. Free memory is still 339.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 374.3s, 270 PlacesBefore, 106 PlacesAfterwards, 266 TransitionsBefore, 102 TransitionsAfterwards, 7590 CoEnabledTransitionPairs, 10 FixpointIterations, 189 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 227 TotalNumberOfCompositions, 81588 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9814, independent: 8026, independent conditional: 0, independent unconditional: 8026, dependent: 1788, dependent conditional: 0, dependent unconditional: 1788, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2667, independent: 2529, independent conditional: 0, independent unconditional: 2529, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9814, independent: 5497, independent conditional: 0, independent unconditional: 5497, dependent: 1650, dependent conditional: 0, dependent unconditional: 1650, unknown: 2667, unknown conditional: 0, unknown unconditional: 2667] , Statistics on independence cache: Total cache size (in pairs): 553, Positive cache size: 451, Positive conditional cache size: 0, Positive unconditional cache size: 451, Negative cache size: 102, Negative conditional cache size: 0, Negative unconditional cache size: 102, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1235]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1231] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1232] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1243] 0 pthread_t t1; [L1244] 0 struct s *p = malloc(sizeof(struct s)); [L1245] CALL 0 init(p,9) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1245] RET 0 init(p,9) [L1246] 0 A = malloc(sizeof(struct s)) [L1247] 0 init(A,3) [L1247] CALL 0 init(A,3) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1247] RET 0 init(A,3) [L1248] EXPR 0 A->next [L1248] 0 A->next = p [L1249] 0 B = malloc(sizeof(struct s)) [L1250] 0 init(B,5) [L1250] CALL 0 init(B,5) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1250] RET 0 init(B,5) [L1251] EXPR 0 B->next [L1251] 0 B->next = p [L1252] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={13:0}] [L1254] EXPR 0 A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1254] 0 p = A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1255] EXPR 0 p->datum VAL [A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p->datum=9, p={-3:0}, t1={13:0}] [L1255] 0 printf("%d\n", p->datum) [L1258] EXPR 0 B->next VAL [A={-2:0}, A_mutex={1:0}, B->next={-3:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1235] EXPR 1 A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1235] EXPR 1 A->next->datum VAL [A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1235] 1 A->next->datum++ VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1258] 0 p = B->next [L1259] 0 p->datum VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}, p->datum=10, p={-3:0}, t1={13:0}] [L1235] 1 A->next->datum++ VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: printf("%d\n", p->datum) [1259] * C: A->next = p [1248] * C: B->next [1251] * C: p = B->next [1258] * C: printf("%d\n", p->datum) [1255] * C: A->next [1248] * C: A->next->datum [1235] * C: B = malloc(sizeof(struct s)) [1249] * C: init(B,5) [1250] * C: p = A->next [1254] * C: A->next [1235] * C: p = B->next [1258] * C: A->next->datum [1235] * C: A->next [1254] * C: B->next = p [1251] * C: printf("%d\n", p->datum) [1255] * C: B->next = p [1251] * C: A->next = p [1248] * C: printf("%d\n", p->datum) [1255] * C: A = malloc(sizeof(struct s)) [1246] * C: p = B->next [1258] * C: p -> datum = x [1228] * C: init(A,3) [1247] * C: p -> datum = x [1228] * C: p -> datum = x [1228] * C: p -> next = ((void *)0) [1229] * C: p -> next = ((void *)0) [1229] * C: A->next->datum++ [1235] * C: A->next->datum++ [1235] * C: A->next->datum [1235] * C: p -> datum = x [1228] * C: p = B->next [1258] * C: p = A->next [1254] * C: A->next = p [1248] * C: p -> next = ((void *)0) [1229] * C: p = A->next [1254] * C: A->next = p [1248] * C: p = A->next [1254] * C: B->next = p [1251] * C: p -> next = ((void *)0) [1229] * C: A->next->datum++ [1235] * C: B->next [1258] * C: A->next->datum++ [1235] * C: A->next->datum [1235] * C: printf("%d\n", p->datum) [1255] * C: B->next = p [1251] and C: A->next->datum++ [1235] - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1249]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1250]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1255]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1259]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1252]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 339 locations, 37 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 474.3s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 76.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 374.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11588 SdHoareTripleChecker+Valid, 52.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8784 mSDsluCounter, 3008 SdHoareTripleChecker+Invalid, 48.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2872 mSDsCounter, 3263 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36741 IncrementalHoareTripleChecker+Invalid, 40004 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3263 mSolverCounterUnsat, 136 mSDtfsCounter, 36741 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20466occurred in iteration=24, InterpolantAutomatonStates: 275, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 841 NumberOfCodeBlocks, 841 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 12618 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-29 02:22:14,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE