./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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_02-list_nr.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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 20:12:38,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:12:38,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:12:38,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:12:38,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:12:38,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:12:38,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:12:38,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:12:38,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:12:38,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:12:38,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:12:38,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:12:38,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:12:38,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:12:38,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:12:38,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:12:38,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:12:38,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:12:38,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:12:38,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:12:38,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:12:38,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:12:38,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:12:38,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:12:38,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:12:38,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:12:38,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:12:38,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:12:38,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:12:38,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:12:38,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:12:38,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:12:38,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:12:38,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:12:38,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:12:38,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:12:38,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:12:38,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:12:38,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:12:38,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:12:38,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:12:38,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:12:38,901 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:12:38,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:12:38,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:12:38,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:12:38,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:12:38,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:12:38,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:12:38,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:12:38,904 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:12:38,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:12:38,904 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:12:38,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:12:38,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:12:38,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:12:38,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:12:38,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:12:38,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:12:38,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:12:38,906 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:12:38,906 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:12:38,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:12:38,906 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:12:38,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:12:38,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:12:38,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:12:38,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:12:38,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:12:38,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:12:38,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:12:38,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:12:38,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:12:38,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:12:38,909 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:12:38,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:12:38,909 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:12:38,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:12:38,909 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:12:38,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:12:39,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:12:39,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:12:39,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:12:39,225 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:12:39,226 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:12:39,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-08-31 20:12:40,447 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:12:40,785 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:12:40,786 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-08-31 20:12:40,807 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c916372/75cd701e0e05494eac48428aceb6f183/FLAG60bd9d678 [2023-08-31 20:12:40,830 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c916372/75cd701e0e05494eac48428aceb6f183 [2023-08-31 20:12:40,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:12:40,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:12:40,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:12:40,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:12:40,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:12:40,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:12:40" (1/1) ... [2023-08-31 20:12:40,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370419b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:40, skipping insertion in model container [2023-08-31 20:12:40,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:12:40" (1/1) ... [2023-08-31 20:12:40,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:12:40,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:12:41,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:12:41,394 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:12:41,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:12:41,553 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:12:41,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41 WrapperNode [2023-08-31 20:12:41,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:12:41,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:12:41,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:12:41,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:12:41,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,610 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2023-08-31 20:12:41,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:12:41,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:12:41,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:12:41,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:12:41,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,658 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:12:41,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:12:41,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:12:41,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:12:41,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (1/1) ... [2023-08-31 20:12:41,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:12:41,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:12:41,722 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) [2023-08-31 20:12:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:12:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-31 20:12:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:12:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:12:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:12:41,741 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 [2023-08-31 20:12:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:12:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 20:12:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:12:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 20:12:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:12:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:12:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:12:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:12:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:12:41,763 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 20:12:41,904 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:12:41,906 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:12:42,359 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:12:42,371 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:12:42,376 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 20:12:42,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:12:42 BoogieIcfgContainer [2023-08-31 20:12:42,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:12:42,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:12:42,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:12:42,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:12:42,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:12:40" (1/3) ... [2023-08-31 20:12:42,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606d5931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:12:42, skipping insertion in model container [2023-08-31 20:12:42,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:12:41" (2/3) ... [2023-08-31 20:12:42,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606d5931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:12:42, skipping insertion in model container [2023-08-31 20:12:42,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:12:42" (3/3) ... [2023-08-31 20:12:42,394 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2023-08-31 20:12:42,401 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:12:42,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:12:42,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-31 20:12:42,409 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:12:42,525 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:12:42,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 196 transitions, 397 flow [2023-08-31 20:12:42,653 INFO L130 PetriNetUnfolder]: 0/195 cut-off events. [2023-08-31 20:12:42,654 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:12:42,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 195 events. 0/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 20:12:42,657 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 196 transitions, 397 flow [2023-08-31 20:12:42,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 195 transitions, 393 flow [2023-08-31 20:12:42,671 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:12:42,686 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 195 transitions, 393 flow [2023-08-31 20:12:42,690 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 195 transitions, 393 flow [2023-08-31 20:12:42,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 195 transitions, 393 flow [2023-08-31 20:12:42,751 INFO L130 PetriNetUnfolder]: 0/195 cut-off events. [2023-08-31 20:12:42,752 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:12:42,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 195 events. 0/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 20:12:42,756 INFO L119 LiptonReduction]: Number of co-enabled transitions 4092 [2023-08-31 20:13:22,903 WARN L222 SmtUtils]: Spent 15.06s on a formula simplification that was a NOOP. DAG size: 250 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:13:41,348 WARN L222 SmtUtils]: Spent 15.20s on a formula simplification that was a NOOP. DAG size: 250 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:13:53,690 WARN L222 SmtUtils]: Spent 12.34s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:12,954 WARN L222 SmtUtils]: Spent 18.50s on a formula simplification. DAG size of input: 262 DAG size of output: 259 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:22,419 WARN L222 SmtUtils]: Spent 9.46s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:15:17,886 WARN L222 SmtUtils]: Spent 55.46s on a formula simplification. DAG size of input: 262 DAG size of output: 259 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:15:30,628 WARN L222 SmtUtils]: Spent 12.74s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:15:30,632 INFO L134 LiptonReduction]: Checked pairs total: 38163 [2023-08-31 20:15:30,632 INFO L136 LiptonReduction]: Total number of compositions: 159 [2023-08-31 20:15:30,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:15:30,647 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;@55f34935, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:15:30,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-31 20:15:30,649 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 20:15:30,649 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:15:30,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:30,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 20:15:30,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:30,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:30,654 INFO L85 PathProgramCache]: Analyzing trace with hash 643, now seen corresponding path program 1 times [2023-08-31 20:15:30,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:30,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459056657] [2023-08-31 20:15:30,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:30,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:30,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:30,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459056657] [2023-08-31 20:15:30,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459056657] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:30,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:30,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 20:15:30,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72026897] [2023-08-31 20:15:30,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:30,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 20:15:30,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:30,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 20:15:30,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 20:15:30,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 355 [2023-08-31 20:15:30,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:30,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:30,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 355 [2023-08-31 20:15:30,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:30,932 INFO L130 PetriNetUnfolder]: 78/405 cut-off events. [2023-08-31 20:15:30,933 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:15:30,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 405 events. 78/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1925 event pairs, 78 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 578. Up to 178 conditions per place. [2023-08-31 20:15:30,942 INFO L137 encePairwiseOnDemand]: 347/355 looper letters, 21 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-31 20:15:30,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 175 flow [2023-08-31 20:15:30,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 20:15:30,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 20:15:30,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 419 transitions. [2023-08-31 20:15:30,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5901408450704225 [2023-08-31 20:15:30,964 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 419 transitions. [2023-08-31 20:15:30,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 419 transitions. [2023-08-31 20:15:30,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:30,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 419 transitions. [2023-08-31 20:15:30,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:30,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:30,978 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:30,979 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 2 states and 419 transitions. [2023-08-31 20:15:30,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 175 flow [2023-08-31 20:15:30,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:15:30,985 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-31 20:15:30,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-31 20:15:30,991 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2023-08-31 20:15:30,994 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-31 20:15:30,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:30,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:30,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 20:15:30,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:15:30,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:31,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:31,005 INFO L85 PathProgramCache]: Analyzing trace with hash 616433557, now seen corresponding path program 1 times [2023-08-31 20:15:31,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:31,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273148357] [2023-08-31 20:15:31,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:31,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:31,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:31,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273148357] [2023-08-31 20:15:31,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273148357] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:31,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:31,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:15:31,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088946828] [2023-08-31 20:15:31,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:31,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:15:31,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:31,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:15:31,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:15:31,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 355 [2023-08-31 20:15:31,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:31,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:31,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 355 [2023-08-31 20:15:31,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:31,396 INFO L130 PetriNetUnfolder]: 119/489 cut-off events. [2023-08-31 20:15:31,397 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:15:31,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 489 events. 119/489 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2334 event pairs, 119 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 755. Up to 264 conditions per place. [2023-08-31 20:15:31,399 INFO L137 encePairwiseOnDemand]: 351/355 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-31 20:15:31,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2023-08-31 20:15:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:15:31,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:15:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2023-08-31 20:15:31,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5314553990610329 [2023-08-31 20:15:31,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 566 transitions. [2023-08-31 20:15:31,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 566 transitions. [2023-08-31 20:15:31,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:31,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 566 transitions. [2023-08-31 20:15:31,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:31,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:31,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:31,408 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 566 transitions. [2023-08-31 20:15:31,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2023-08-31 20:15:31,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:15:31,409 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-31 20:15:31,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-08-31 20:15:31,410 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2023-08-31 20:15:31,411 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-31 20:15:31,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:31,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:31,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:31,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:15:31,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:31,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1088761223, now seen corresponding path program 1 times [2023-08-31 20:15:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:31,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439231088] [2023-08-31 20:15:31,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:31,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:32,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:32,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439231088] [2023-08-31 20:15:32,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439231088] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:32,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:32,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:15:32,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556399249] [2023-08-31 20:15:32,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:32,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:15:32,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:32,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:15:32,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:15:32,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 355 [2023-08-31 20:15:32,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:32,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:32,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 355 [2023-08-31 20:15:32,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:32,635 INFO L130 PetriNetUnfolder]: 419/1084 cut-off events. [2023-08-31 20:15:32,635 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:15:32,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 1084 events. 419/1084 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5342 event pairs, 312 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 1972. Up to 802 conditions per place. [2023-08-31 20:15:32,640 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 66 selfloop transitions, 37 changer transitions 0/122 dead transitions. [2023-08-31 20:15:32,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 122 transitions, 454 flow [2023-08-31 20:15:32,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:15:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:15:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 974 transitions. [2023-08-31 20:15:32,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4572769953051643 [2023-08-31 20:15:32,644 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 974 transitions. [2023-08-31 20:15:32,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 974 transitions. [2023-08-31 20:15:32,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:32,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 974 transitions. [2023-08-31 20:15:32,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:32,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:32,652 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:32,652 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 974 transitions. [2023-08-31 20:15:32,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 122 transitions, 454 flow [2023-08-31 20:15:32,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 122 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:15:32,655 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-31 20:15:32,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-31 20:15:32,656 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2023-08-31 20:15:32,656 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-31 20:15:32,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:32,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:32,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:32,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:15:32,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:32,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:32,658 INFO L85 PathProgramCache]: Analyzing trace with hash -80791827, now seen corresponding path program 1 times [2023-08-31 20:15:32,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:32,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603265455] [2023-08-31 20:15:32,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:32,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:33,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:33,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:33,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603265455] [2023-08-31 20:15:33,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603265455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:33,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:33,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:15:33,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286871319] [2023-08-31 20:15:33,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:33,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:15:33,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:33,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:15:33,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:15:33,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 355 [2023-08-31 20:15:33,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:33,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:33,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 355 [2023-08-31 20:15:33,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:33,783 INFO L130 PetriNetUnfolder]: 622/1669 cut-off events. [2023-08-31 20:15:33,783 INFO L131 PetriNetUnfolder]: For 233/246 co-relation queries the response was YES. [2023-08-31 20:15:33,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3630 conditions, 1669 events. 622/1669 cut-off events. For 233/246 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9976 event pairs, 78 based on Foata normal form. 0/1574 useless extension candidates. Maximal degree in co-relation 3622. Up to 707 conditions per place. [2023-08-31 20:15:33,791 INFO L137 encePairwiseOnDemand]: 327/355 looper letters, 135 selfloop transitions, 77 changer transitions 0/246 dead transitions. [2023-08-31 20:15:33,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 246 transitions, 1150 flow [2023-08-31 20:15:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:15:33,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:15:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1048 transitions. [2023-08-31 20:15:33,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.492018779342723 [2023-08-31 20:15:33,800 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1048 transitions. [2023-08-31 20:15:33,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1048 transitions. [2023-08-31 20:15:33,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:33,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1048 transitions. [2023-08-31 20:15:33,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:33,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:33,808 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:33,808 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1048 transitions. [2023-08-31 20:15:33,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 246 transitions, 1150 flow [2023-08-31 20:15:33,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 246 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:15:33,820 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-31 20:15:33,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-08-31 20:15:33,821 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2023-08-31 20:15:33,821 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-31 20:15:33,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:33,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:33,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:33,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:15:33,823 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:33,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:33,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1863694665, now seen corresponding path program 1 times [2023-08-31 20:15:33,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:33,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160986923] [2023-08-31 20:15:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:33,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:34,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:34,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:34,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160986923] [2023-08-31 20:15:34,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160986923] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:34,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:34,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:15:34,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267278969] [2023-08-31 20:15:34,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:34,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:15:34,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:34,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:15:34,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:15:35,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 355 [2023-08-31 20:15:35,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 142.2) internal successors, (1422), 10 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:35,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:35,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 355 [2023-08-31 20:15:35,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:35,811 INFO L130 PetriNetUnfolder]: 743/1912 cut-off events. [2023-08-31 20:15:35,811 INFO L131 PetriNetUnfolder]: For 1441/1449 co-relation queries the response was YES. [2023-08-31 20:15:35,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5654 conditions, 1912 events. 743/1912 cut-off events. For 1441/1449 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11380 event pairs, 245 based on Foata normal form. 0/1845 useless extension candidates. Maximal degree in co-relation 5641. Up to 1219 conditions per place. [2023-08-31 20:15:35,824 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 235 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2023-08-31 20:15:35,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2307 flow [2023-08-31 20:15:35,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 20:15:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 20:15:35,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2303 transitions. [2023-08-31 20:15:35,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4324882629107981 [2023-08-31 20:15:35,832 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2303 transitions. [2023-08-31 20:15:35,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2303 transitions. [2023-08-31 20:15:35,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:35,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2303 transitions. [2023-08-31 20:15:35,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 153.53333333333333) internal successors, (2303), 15 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:35,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 355.0) internal successors, (5680), 16 states have internal predecessors, (5680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:35,849 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 355.0) internal successors, (5680), 16 states have internal predecessors, (5680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:35,849 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2303 transitions. [2023-08-31 20:15:35,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2307 flow [2023-08-31 20:15:35,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 335 transitions, 2289 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-31 20:15:35,866 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-31 20:15:35,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2023-08-31 20:15:35,869 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 27 predicate places. [2023-08-31 20:15:35,869 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-31 20:15:35,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.2) internal successors, (1422), 10 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:35,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:35,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:35,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:15:35,873 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:35,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:35,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1676920082, now seen corresponding path program 1 times [2023-08-31 20:15:35,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:35,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562409575] [2023-08-31 20:15:35,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:35,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:36,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:36,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:36,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562409575] [2023-08-31 20:15:36,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562409575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:36,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:36,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:15:36,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322854898] [2023-08-31 20:15:36,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:36,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:15:36,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:36,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:15:36,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:15:36,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:15:36,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:36,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:36,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:15:36,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:38,078 INFO L130 PetriNetUnfolder]: 774/2149 cut-off events. [2023-08-31 20:15:38,078 INFO L131 PetriNetUnfolder]: For 2144/2181 co-relation queries the response was YES. [2023-08-31 20:15:38,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6872 conditions, 2149 events. 774/2149 cut-off events. For 2144/2181 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14321 event pairs, 93 based on Foata normal form. 19/2091 useless extension candidates. Maximal degree in co-relation 6853. Up to 622 conditions per place. [2023-08-31 20:15:38,094 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 261 selfloop transitions, 121 changer transitions 2/424 dead transitions. [2023-08-31 20:15:38,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 424 transitions, 3169 flow [2023-08-31 20:15:38,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:15:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:15:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1960 transitions. [2023-08-31 20:15:38,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.460093896713615 [2023-08-31 20:15:38,101 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1960 transitions. [2023-08-31 20:15:38,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1960 transitions. [2023-08-31 20:15:38,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:38,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1960 transitions. [2023-08-31 20:15:38,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 163.33333333333334) internal successors, (1960), 12 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:38,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 355.0) internal successors, (4615), 13 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:38,113 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 355.0) internal successors, (4615), 13 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:38,113 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 1960 transitions. [2023-08-31 20:15:38,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 424 transitions, 3169 flow [2023-08-31 20:15:38,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 424 transitions, 3157 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-31 20:15:38,132 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2023-08-31 20:15:38,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=125, PETRI_TRANSITIONS=258} [2023-08-31 20:15:38,135 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2023-08-31 20:15:38,135 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2023-08-31 20:15:38,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:38,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:38,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:38,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:15:38,136 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:38,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:38,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1311471964, now seen corresponding path program 2 times [2023-08-31 20:15:38,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:38,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062418650] [2023-08-31 20:15:38,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:38,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:38,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:38,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062418650] [2023-08-31 20:15:38,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062418650] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:38,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:38,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:15:38,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426582363] [2023-08-31 20:15:38,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:38,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:15:38,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:38,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:15:38,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:15:39,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:15:39,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:39,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:39,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:15:39,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:40,458 INFO L130 PetriNetUnfolder]: 828/2278 cut-off events. [2023-08-31 20:15:40,459 INFO L131 PetriNetUnfolder]: For 4686/4719 co-relation queries the response was YES. [2023-08-31 20:15:40,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8608 conditions, 2278 events. 828/2278 cut-off events. For 4686/4719 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15226 event pairs, 95 based on Foata normal form. 24/2210 useless extension candidates. Maximal degree in co-relation 8579. Up to 722 conditions per place. [2023-08-31 20:15:40,481 INFO L137 encePairwiseOnDemand]: 330/355 looper letters, 336 selfloop transitions, 116 changer transitions 3/495 dead transitions. [2023-08-31 20:15:40,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 495 transitions, 4591 flow [2023-08-31 20:15:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 20:15:40,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 20:15:40,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2779 transitions. [2023-08-31 20:15:40,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4348982785602504 [2023-08-31 20:15:40,491 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2779 transitions. [2023-08-31 20:15:40,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2779 transitions. [2023-08-31 20:15:40,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:40,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2779 transitions. [2023-08-31 20:15:40,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 154.38888888888889) internal successors, (2779), 18 states have internal predecessors, (2779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:40,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:40,511 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:40,511 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 18 states and 2779 transitions. [2023-08-31 20:15:40,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 495 transitions, 4591 flow [2023-08-31 20:15:40,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 495 transitions, 4579 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-31 20:15:40,551 INFO L231 Difference]: Finished difference. Result has 148 places, 301 transitions, 2975 flow [2023-08-31 20:15:40,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2975, PETRI_PLACES=148, PETRI_TRANSITIONS=301} [2023-08-31 20:15:40,552 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 71 predicate places. [2023-08-31 20:15:40,552 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 301 transitions, 2975 flow [2023-08-31 20:15:40,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:40,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:40,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:40,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:15:40,553 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:40,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:40,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1375559064, now seen corresponding path program 3 times [2023-08-31 20:15:40,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:40,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776740638] [2023-08-31 20:15:40,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:40,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:40,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:40,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776740638] [2023-08-31 20:15:40,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776740638] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:40,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:40,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:15:40,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893694152] [2023-08-31 20:15:40,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:40,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:15:40,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:40,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:15:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:15:41,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:15:41,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 301 transitions, 2975 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:41,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:41,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:15:41,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:42,704 INFO L130 PetriNetUnfolder]: 1106/3046 cut-off events. [2023-08-31 20:15:42,704 INFO L131 PetriNetUnfolder]: For 9601/9670 co-relation queries the response was YES. [2023-08-31 20:15:42,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12829 conditions, 3046 events. 1106/3046 cut-off events. For 9601/9670 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 22626 event pairs, 106 based on Foata normal form. 34/2962 useless extension candidates. Maximal degree in co-relation 12794. Up to 884 conditions per place. [2023-08-31 20:15:42,732 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 317 selfloop transitions, 207 changer transitions 3/567 dead transitions. [2023-08-31 20:15:42,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 567 transitions, 5926 flow [2023-08-31 20:15:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-31 20:15:42,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-31 20:15:42,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2690 transitions. [2023-08-31 20:15:42,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44573322286661143 [2023-08-31 20:15:42,740 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2690 transitions. [2023-08-31 20:15:42,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2690 transitions. [2023-08-31 20:15:42,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:42,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2690 transitions. [2023-08-31 20:15:42,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 158.23529411764707) internal successors, (2690), 17 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:42,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:42,755 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:42,755 INFO L175 Difference]: Start difference. First operand has 148 places, 301 transitions, 2975 flow. Second operand 17 states and 2690 transitions. [2023-08-31 20:15:42,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 567 transitions, 5926 flow [2023-08-31 20:15:42,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 567 transitions, 5916 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-31 20:15:42,816 INFO L231 Difference]: Finished difference. Result has 174 places, 381 transitions, 4825 flow [2023-08-31 20:15:42,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=2965, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4825, PETRI_PLACES=174, PETRI_TRANSITIONS=381} [2023-08-31 20:15:42,817 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 97 predicate places. [2023-08-31 20:15:42,817 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 381 transitions, 4825 flow [2023-08-31 20:15:42,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:42,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:42,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:42,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:15:42,818 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:42,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:42,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1412577812, now seen corresponding path program 4 times [2023-08-31 20:15:42,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:42,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077115500] [2023-08-31 20:15:42,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:42,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:43,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:43,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077115500] [2023-08-31 20:15:43,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077115500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:43,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:43,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:15:43,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331786648] [2023-08-31 20:15:43,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:43,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:15:43,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:43,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:15:43,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:15:44,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:15:44,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 381 transitions, 4825 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:44,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:44,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:15:44,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:45,475 INFO L130 PetriNetUnfolder]: 1403/3870 cut-off events. [2023-08-31 20:15:45,475 INFO L131 PetriNetUnfolder]: For 19855/19987 co-relation queries the response was YES. [2023-08-31 20:15:45,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18124 conditions, 3870 events. 1403/3870 cut-off events. For 19855/19987 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 30877 event pairs, 247 based on Foata normal form. 72/3789 useless extension candidates. Maximal degree in co-relation 18077. Up to 882 conditions per place. [2023-08-31 20:15:45,508 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 365 selfloop transitions, 238 changer transitions 2/645 dead transitions. [2023-08-31 20:15:45,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 645 transitions, 8337 flow [2023-08-31 20:15:45,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:15:45,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:15:45,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2258 transitions. [2023-08-31 20:15:45,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45432595573440643 [2023-08-31 20:15:45,514 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2258 transitions. [2023-08-31 20:15:45,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2258 transitions. [2023-08-31 20:15:45,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:45,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2258 transitions. [2023-08-31 20:15:45,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 161.28571428571428) internal successors, (2258), 14 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:45,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:45,527 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:45,528 INFO L175 Difference]: Start difference. First operand has 174 places, 381 transitions, 4825 flow. Second operand 14 states and 2258 transitions. [2023-08-31 20:15:45,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 645 transitions, 8337 flow [2023-08-31 20:15:45,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 645 transitions, 8247 flow, removed 36 selfloop flow, removed 4 redundant places. [2023-08-31 20:15:45,689 INFO L231 Difference]: Finished difference. Result has 195 places, 460 transitions, 6983 flow [2023-08-31 20:15:45,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=4754, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6983, PETRI_PLACES=195, PETRI_TRANSITIONS=460} [2023-08-31 20:15:45,691 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 118 predicate places. [2023-08-31 20:15:45,691 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 460 transitions, 6983 flow [2023-08-31 20:15:45,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:45,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:45,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:45,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 20:15:45,692 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:45,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:45,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1902450344, now seen corresponding path program 5 times [2023-08-31 20:15:45,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:45,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054743304] [2023-08-31 20:15:45,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:45,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:46,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:46,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:46,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054743304] [2023-08-31 20:15:46,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054743304] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:46,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:46,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:15:46,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395505838] [2023-08-31 20:15:46,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:46,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:15:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:46,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:15:46,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:15:46,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:15:46,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 460 transitions, 6983 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:46,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:46,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:15:46,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:48,089 INFO L130 PetriNetUnfolder]: 1727/4752 cut-off events. [2023-08-31 20:15:48,089 INFO L131 PetriNetUnfolder]: For 35507/35745 co-relation queries the response was YES. [2023-08-31 20:15:48,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24390 conditions, 4752 events. 1727/4752 cut-off events. For 35507/35745 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 39898 event pairs, 170 based on Foata normal form. 137/4694 useless extension candidates. Maximal degree in co-relation 24332. Up to 1081 conditions per place. [2023-08-31 20:15:48,182 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 451 selfloop transitions, 307 changer transitions 3/801 dead transitions. [2023-08-31 20:15:48,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 801 transitions, 12065 flow [2023-08-31 20:15:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-31 20:15:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-31 20:15:48,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2542 transitions. [2023-08-31 20:15:48,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44753521126760565 [2023-08-31 20:15:48,189 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2542 transitions. [2023-08-31 20:15:48,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2542 transitions. [2023-08-31 20:15:48,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:48,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2542 transitions. [2023-08-31 20:15:48,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 158.875) internal successors, (2542), 16 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:48,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 355.0) internal successors, (6035), 17 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:48,202 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 355.0) internal successors, (6035), 17 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:48,203 INFO L175 Difference]: Start difference. First operand has 195 places, 460 transitions, 6983 flow. Second operand 16 states and 2542 transitions. [2023-08-31 20:15:48,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 801 transitions, 12065 flow [2023-08-31 20:15:48,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 801 transitions, 12018 flow, removed 14 selfloop flow, removed 1 redundant places. [2023-08-31 20:15:48,438 INFO L231 Difference]: Finished difference. Result has 219 places, 557 transitions, 9996 flow [2023-08-31 20:15:48,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=6947, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=221, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9996, PETRI_PLACES=219, PETRI_TRANSITIONS=557} [2023-08-31 20:15:48,439 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 142 predicate places. [2023-08-31 20:15:48,439 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 557 transitions, 9996 flow [2023-08-31 20:15:48,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:48,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:48,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:48,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 20:15:48,440 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:48,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:48,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1150116754, now seen corresponding path program 6 times [2023-08-31 20:15:48,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:48,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696392709] [2023-08-31 20:15:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:48,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:48,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:48,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696392709] [2023-08-31 20:15:48,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696392709] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:48,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:48,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:15:48,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9328452] [2023-08-31 20:15:48,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:48,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:15:48,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:48,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:15:48,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:15:49,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:15:49,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 557 transitions, 9996 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:49,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:49,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:15:49,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:51,451 INFO L130 PetriNetUnfolder]: 2122/5818 cut-off events. [2023-08-31 20:15:51,452 INFO L131 PetriNetUnfolder]: For 60696/60990 co-relation queries the response was YES. [2023-08-31 20:15:51,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32576 conditions, 5818 events. 2122/5818 cut-off events. For 60696/60990 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 51211 event pairs, 298 based on Foata normal form. 154/5736 useless extension candidates. Maximal degree in co-relation 32508. Up to 1300 conditions per place. [2023-08-31 20:15:51,505 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 467 selfloop transitions, 361 changer transitions 2/870 dead transitions. [2023-08-31 20:15:51,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 870 transitions, 15370 flow [2023-08-31 20:15:51,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:15:51,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:15:51,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2246 transitions. [2023-08-31 20:15:51,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45191146881287725 [2023-08-31 20:15:51,508 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2246 transitions. [2023-08-31 20:15:51,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2246 transitions. [2023-08-31 20:15:51,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:51,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2246 transitions. [2023-08-31 20:15:51,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 160.42857142857142) internal successors, (2246), 14 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:51,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:51,517 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:51,517 INFO L175 Difference]: Start difference. First operand has 219 places, 557 transitions, 9996 flow. Second operand 14 states and 2246 transitions. [2023-08-31 20:15:51,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 870 transitions, 15370 flow [2023-08-31 20:15:52,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 870 transitions, 15308 flow, removed 22 selfloop flow, removed 4 redundant places. [2023-08-31 20:15:52,051 INFO L231 Difference]: Finished difference. Result has 240 places, 656 transitions, 13507 flow [2023-08-31 20:15:52,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=9950, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13507, PETRI_PLACES=240, PETRI_TRANSITIONS=656} [2023-08-31 20:15:52,052 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 163 predicate places. [2023-08-31 20:15:52,052 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 656 transitions, 13507 flow [2023-08-31 20:15:52,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:52,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:52,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:52,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 20:15:52,053 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:52,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:52,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1788471914, now seen corresponding path program 7 times [2023-08-31 20:15:52,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:52,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154306189] [2023-08-31 20:15:52,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:52,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:52,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:52,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154306189] [2023-08-31 20:15:52,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154306189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:52,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:52,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:15:52,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451276079] [2023-08-31 20:15:52,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:52,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:15:52,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:52,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:15:52,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:15:53,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:15:53,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 656 transitions, 13507 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:53,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:53,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:15:53,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:55,608 INFO L130 PetriNetUnfolder]: 2330/6342 cut-off events. [2023-08-31 20:15:55,608 INFO L131 PetriNetUnfolder]: For 87958/88271 co-relation queries the response was YES. [2023-08-31 20:15:55,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38548 conditions, 6342 events. 2330/6342 cut-off events. For 87958/88271 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 56939 event pairs, 315 based on Foata normal form. 186/6283 useless extension candidates. Maximal degree in co-relation 38469. Up to 1734 conditions per place. [2023-08-31 20:15:55,672 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 455 selfloop transitions, 435 changer transitions 3/933 dead transitions. [2023-08-31 20:15:55,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 933 transitions, 18275 flow [2023-08-31 20:15:55,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 20:15:55,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 20:15:55,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2847 transitions. [2023-08-31 20:15:55,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44553990610328637 [2023-08-31 20:15:55,676 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2847 transitions. [2023-08-31 20:15:55,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2847 transitions. [2023-08-31 20:15:55,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:55,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2847 transitions. [2023-08-31 20:15:55,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 158.16666666666666) internal successors, (2847), 18 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:55,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:55,686 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:55,687 INFO L175 Difference]: Start difference. First operand has 240 places, 656 transitions, 13507 flow. Second operand 18 states and 2847 transitions. [2023-08-31 20:15:55,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 933 transitions, 18275 flow [2023-08-31 20:15:56,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 933 transitions, 18209 flow, removed 33 selfloop flow, removed 0 redundant places. [2023-08-31 20:15:56,380 INFO L231 Difference]: Finished difference. Result has 269 places, 717 transitions, 16715 flow [2023-08-31 20:15:56,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=13453, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=375, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=16715, PETRI_PLACES=269, PETRI_TRANSITIONS=717} [2023-08-31 20:15:56,381 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 192 predicate places. [2023-08-31 20:15:56,381 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 717 transitions, 16715 flow [2023-08-31 20:15:56,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:56,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:15:56,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:15:56,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 20:15:56,382 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:15:56,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:15:56,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2040545132, now seen corresponding path program 8 times [2023-08-31 20:15:56,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:15:56,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128329335] [2023-08-31 20:15:56,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:15:56,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:15:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:15:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:15:56,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:15:56,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128329335] [2023-08-31 20:15:56,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128329335] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:15:56,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:15:56,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:15:56,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3921383] [2023-08-31 20:15:56,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:15:56,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:15:56,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:15:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:15:56,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:15:57,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:15:57,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 717 transitions, 16715 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:57,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:15:57,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:15:57,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:15:59,862 INFO L130 PetriNetUnfolder]: 2654/7280 cut-off events. [2023-08-31 20:15:59,862 INFO L131 PetriNetUnfolder]: For 128521/129053 co-relation queries the response was YES. [2023-08-31 20:15:59,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47158 conditions, 7280 events. 2654/7280 cut-off events. For 128521/129053 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 67762 event pairs, 381 based on Foata normal form. 303/7282 useless extension candidates. Maximal degree in co-relation 47066. Up to 1759 conditions per place. [2023-08-31 20:15:59,935 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 558 selfloop transitions, 440 changer transitions 2/1040 dead transitions. [2023-08-31 20:15:59,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1040 transitions, 23358 flow [2023-08-31 20:15:59,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:15:59,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:15:59,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2233 transitions. [2023-08-31 20:15:59,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44929577464788734 [2023-08-31 20:15:59,939 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2233 transitions. [2023-08-31 20:15:59,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2233 transitions. [2023-08-31 20:15:59,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:15:59,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2233 transitions. [2023-08-31 20:15:59,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 159.5) internal successors, (2233), 14 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:59,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:59,947 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:15:59,947 INFO L175 Difference]: Start difference. First operand has 269 places, 717 transitions, 16715 flow. Second operand 14 states and 2233 transitions. [2023-08-31 20:15:59,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 1040 transitions, 23358 flow [2023-08-31 20:16:00,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 1040 transitions, 23222 flow, removed 37 selfloop flow, removed 3 redundant places. [2023-08-31 20:16:00,985 INFO L231 Difference]: Finished difference. Result has 291 places, 810 transitions, 20902 flow [2023-08-31 20:16:00,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=16603, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=351, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20902, PETRI_PLACES=291, PETRI_TRANSITIONS=810} [2023-08-31 20:16:00,986 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 214 predicate places. [2023-08-31 20:16:00,986 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 810 transitions, 20902 flow [2023-08-31 20:16:00,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:00,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:16:00,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:16:00,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 20:16:00,987 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:16:00,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:16:00,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2124690030, now seen corresponding path program 9 times [2023-08-31 20:16:00,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:16:00,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634446538] [2023-08-31 20:16:00,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:16:00,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:16:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:16:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:16:01,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:16:01,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634446538] [2023-08-31 20:16:01,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634446538] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:16:01,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:16:01,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:16:01,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788083877] [2023-08-31 20:16:01,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:16:01,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:16:01,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:16:01,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:16:01,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:16:01,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:16:01,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 810 transitions, 20902 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:01,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:16:01,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:16:01,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:16:04,818 INFO L130 PetriNetUnfolder]: 2808/7720 cut-off events. [2023-08-31 20:16:04,818 INFO L131 PetriNetUnfolder]: For 164868/165458 co-relation queries the response was YES. [2023-08-31 20:16:04,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52746 conditions, 7720 events. 2808/7720 cut-off events. For 164868/165458 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 73040 event pairs, 333 based on Foata normal form. 358/7753 useless extension candidates. Maximal degree in co-relation 52644. Up to 1859 conditions per place. [2023-08-31 20:16:04,899 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 543 selfloop transitions, 517 changer transitions 3/1103 dead transitions. [2023-08-31 20:16:04,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1103 transitions, 26720 flow [2023-08-31 20:16:04,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-31 20:16:04,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-31 20:16:04,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2694 transitions. [2023-08-31 20:16:04,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4463960231980116 [2023-08-31 20:16:04,903 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2694 transitions. [2023-08-31 20:16:04,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2694 transitions. [2023-08-31 20:16:04,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:16:04,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2694 transitions. [2023-08-31 20:16:04,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 158.47058823529412) internal successors, (2694), 17 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:04,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:04,913 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:04,913 INFO L175 Difference]: Start difference. First operand has 291 places, 810 transitions, 20902 flow. Second operand 17 states and 2694 transitions. [2023-08-31 20:16:04,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1103 transitions, 26720 flow [2023-08-31 20:16:06,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 1103 transitions, 26638 flow, removed 41 selfloop flow, removed 0 redundant places. [2023-08-31 20:16:06,185 INFO L231 Difference]: Finished difference. Result has 318 places, 875 transitions, 24812 flow [2023-08-31 20:16:06,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=20832, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=810, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=452, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=24812, PETRI_PLACES=318, PETRI_TRANSITIONS=875} [2023-08-31 20:16:06,186 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 241 predicate places. [2023-08-31 20:16:06,187 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 875 transitions, 24812 flow [2023-08-31 20:16:06,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:06,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:16:06,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:16:06,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 20:16:06,188 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:16:06,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:16:06,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2032182478, now seen corresponding path program 10 times [2023-08-31 20:16:06,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:16:06,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612104823] [2023-08-31 20:16:06,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:16:06,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:16:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:16:06,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:16:06,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:16:06,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612104823] [2023-08-31 20:16:06,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612104823] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:16:06,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:16:06,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:16:06,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684765749] [2023-08-31 20:16:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:16:06,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:16:06,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:16:06,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:16:06,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:16:07,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:16:07,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 875 transitions, 24812 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:07,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:16:07,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:16:07,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:16:10,258 INFO L130 PetriNetUnfolder]: 3029/8343 cut-off events. [2023-08-31 20:16:10,259 INFO L131 PetriNetUnfolder]: For 217740/218440 co-relation queries the response was YES. [2023-08-31 20:16:10,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60373 conditions, 8343 events. 3029/8343 cut-off events. For 217740/218440 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 80240 event pairs, 421 based on Foata normal form. 442/8436 useless extension candidates. Maximal degree in co-relation 60259. Up to 2263 conditions per place. [2023-08-31 20:16:10,370 INFO L137 encePairwiseOnDemand]: 324/355 looper letters, 511 selfloop transitions, 594 changer transitions 2/1147 dead transitions. [2023-08-31 20:16:10,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1147 transitions, 31304 flow [2023-08-31 20:16:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:16:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:16:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2219 transitions. [2023-08-31 20:16:10,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44647887323943664 [2023-08-31 20:16:10,375 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2219 transitions. [2023-08-31 20:16:10,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2219 transitions. [2023-08-31 20:16:10,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:16:10,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2219 transitions. [2023-08-31 20:16:10,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 158.5) internal successors, (2219), 14 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:10,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:10,383 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:10,383 INFO L175 Difference]: Start difference. First operand has 318 places, 875 transitions, 24812 flow. Second operand 14 states and 2219 transitions. [2023-08-31 20:16:10,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1147 transitions, 31304 flow [2023-08-31 20:16:12,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1147 transitions, 31199 flow, removed 42 selfloop flow, removed 5 redundant places. [2023-08-31 20:16:12,226 INFO L231 Difference]: Finished difference. Result has 338 places, 944 transitions, 29447 flow [2023-08-31 20:16:12,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=24717, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=525, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29447, PETRI_PLACES=338, PETRI_TRANSITIONS=944} [2023-08-31 20:16:12,228 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 261 predicate places. [2023-08-31 20:16:12,228 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 944 transitions, 29447 flow [2023-08-31 20:16:12,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:12,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:16:12,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:16:12,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 20:16:12,228 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:16:12,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:16:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2019892068, now seen corresponding path program 11 times [2023-08-31 20:16:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:16:12,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4330405] [2023-08-31 20:16:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:16:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:16:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:16:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:16:12,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:16:12,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4330405] [2023-08-31 20:16:12,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4330405] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:16:12,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:16:12,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:16:12,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903493910] [2023-08-31 20:16:12,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:16:12,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:16:12,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:16:12,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:16:12,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:16:13,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:16:13,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 944 transitions, 29447 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:13,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:16:13,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:16:13,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:16:16,784 INFO L130 PetriNetUnfolder]: 3197/8802 cut-off events. [2023-08-31 20:16:16,784 INFO L131 PetriNetUnfolder]: For 280484/281213 co-relation queries the response was YES. [2023-08-31 20:16:16,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67481 conditions, 8802 events. 3197/8802 cut-off events. For 280484/281213 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 85764 event pairs, 444 based on Foata normal form. 466/8897 useless extension candidates. Maximal degree in co-relation 67356. Up to 2549 conditions per place. [2023-08-31 20:16:16,880 INFO L137 encePairwiseOnDemand]: 326/355 looper letters, 471 selfloop transitions, 629 changer transitions 2/1142 dead transitions. [2023-08-31 20:16:16,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 1142 transitions, 34762 flow [2023-08-31 20:16:16,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 20:16:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 20:16:16,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2041 transitions. [2023-08-31 20:16:16,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4422535211267606 [2023-08-31 20:16:16,883 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2041 transitions. [2023-08-31 20:16:16,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2041 transitions. [2023-08-31 20:16:16,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:16:16,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2041 transitions. [2023-08-31 20:16:16,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 157.0) internal successors, (2041), 13 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:16,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 355.0) internal successors, (4970), 14 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:16,887 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 355.0) internal successors, (4970), 14 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:16,888 INFO L175 Difference]: Start difference. First operand has 338 places, 944 transitions, 29447 flow. Second operand 13 states and 2041 transitions. [2023-08-31 20:16:16,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 1142 transitions, 34762 flow [2023-08-31 20:16:18,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 1142 transitions, 34604 flow, removed 79 selfloop flow, removed 0 redundant places. [2023-08-31 20:16:18,929 INFO L231 Difference]: Finished difference. Result has 360 places, 990 transitions, 33594 flow [2023-08-31 20:16:18,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=29317, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=583, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=33594, PETRI_PLACES=360, PETRI_TRANSITIONS=990} [2023-08-31 20:16:18,930 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 283 predicate places. [2023-08-31 20:16:18,931 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 990 transitions, 33594 flow [2023-08-31 20:16:18,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:18,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:16:18,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:16:18,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 20:16:18,932 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:16:18,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:16:18,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1386061474, now seen corresponding path program 12 times [2023-08-31 20:16:18,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:16:18,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776629570] [2023-08-31 20:16:18,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:16:18,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:16:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:16:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:16:19,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:16:19,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776629570] [2023-08-31 20:16:19,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776629570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:16:19,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:16:19,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:16:19,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572849956] [2023-08-31 20:16:19,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:16:19,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:16:19,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:16:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:16:19,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:16:19,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:16:19,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 990 transitions, 33594 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:19,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:16:19,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:16:19,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:16:23,973 INFO L130 PetriNetUnfolder]: 3345/9255 cut-off events. [2023-08-31 20:16:23,973 INFO L131 PetriNetUnfolder]: For 349872/350572 co-relation queries the response was YES. [2023-08-31 20:16:24,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74098 conditions, 9255 events. 3345/9255 cut-off events. For 349872/350572 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 91581 event pairs, 435 based on Foata normal form. 429/9285 useless extension candidates. Maximal degree in co-relation 73963. Up to 2729 conditions per place. [2023-08-31 20:16:24,091 INFO L137 encePairwiseOnDemand]: 324/355 looper letters, 489 selfloop transitions, 706 changer transitions 2/1237 dead transitions. [2023-08-31 20:16:24,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 1237 transitions, 39785 flow [2023-08-31 20:16:24,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:16:24,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:16:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2230 transitions. [2023-08-31 20:16:24,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.448692152917505 [2023-08-31 20:16:24,095 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2230 transitions. [2023-08-31 20:16:24,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2230 transitions. [2023-08-31 20:16:24,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:16:24,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2230 transitions. [2023-08-31 20:16:24,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 159.28571428571428) internal successors, (2230), 14 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:24,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:24,102 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:24,102 INFO L175 Difference]: Start difference. First operand has 360 places, 990 transitions, 33594 flow. Second operand 14 states and 2230 transitions. [2023-08-31 20:16:24,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 1237 transitions, 39785 flow [2023-08-31 20:16:26,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1237 transitions, 39657 flow, removed 54 selfloop flow, removed 1 redundant places. [2023-08-31 20:16:26,939 INFO L231 Difference]: Finished difference. Result has 384 places, 1049 transitions, 38555 flow [2023-08-31 20:16:26,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=33470, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=990, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38555, PETRI_PLACES=384, PETRI_TRANSITIONS=1049} [2023-08-31 20:16:26,941 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 307 predicate places. [2023-08-31 20:16:26,941 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 1049 transitions, 38555 flow [2023-08-31 20:16:26,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:26,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:16:26,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:16:26,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 20:16:26,942 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:16:26,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:16:26,943 INFO L85 PathProgramCache]: Analyzing trace with hash 2026840098, now seen corresponding path program 13 times [2023-08-31 20:16:26,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:16:26,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093987731] [2023-08-31 20:16:26,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:16:26,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:16:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:16:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:16:27,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:16:27,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093987731] [2023-08-31 20:16:27,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093987731] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:16:27,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:16:27,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:16:27,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695235020] [2023-08-31 20:16:27,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:16:27,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:16:27,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:16:27,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:16:27,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:16:28,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-31 20:16:28,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 1049 transitions, 38555 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:28,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:16:28,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-31 20:16:28,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:16:32,288 INFO L130 PetriNetUnfolder]: 3493/9686 cut-off events. [2023-08-31 20:16:32,289 INFO L131 PetriNetUnfolder]: For 432155/433011 co-relation queries the response was YES. [2023-08-31 20:16:32,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81500 conditions, 9686 events. 3493/9686 cut-off events. For 432155/433011 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 96884 event pairs, 417 based on Foata normal form. 560/9823 useless extension candidates. Maximal degree in co-relation 81353. Up to 2594 conditions per place. [2023-08-31 20:16:32,574 INFO L137 encePairwiseOnDemand]: 325/355 looper letters, 531 selfloop transitions, 692 changer transitions 2/1265 dead transitions. [2023-08-31 20:16:32,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1265 transitions, 44662 flow [2023-08-31 20:16:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:16:32,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:16:32,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2198 transitions. [2023-08-31 20:16:32,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4422535211267606 [2023-08-31 20:16:32,577 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2198 transitions. [2023-08-31 20:16:32,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2198 transitions. [2023-08-31 20:16:32,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:16:32,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2198 transitions. [2023-08-31 20:16:32,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 157.0) internal successors, (2198), 14 states have internal predecessors, (2198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:32,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:32,583 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:32,584 INFO L175 Difference]: Start difference. First operand has 384 places, 1049 transitions, 38555 flow. Second operand 14 states and 2198 transitions. [2023-08-31 20:16:32,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1265 transitions, 44662 flow [2023-08-31 20:16:36,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 1265 transitions, 44541 flow, removed 57 selfloop flow, removed 1 redundant places. [2023-08-31 20:16:36,660 INFO L231 Difference]: Finished difference. Result has 406 places, 1097 transitions, 43330 flow [2023-08-31 20:16:36,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=38444, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=644, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43330, PETRI_PLACES=406, PETRI_TRANSITIONS=1097} [2023-08-31 20:16:36,662 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 329 predicate places. [2023-08-31 20:16:36,662 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 1097 transitions, 43330 flow [2023-08-31 20:16:36,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:36,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:16:36,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:16:36,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 20:16:36,664 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:16:36,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:16:36,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1625640513, now seen corresponding path program 1 times [2023-08-31 20:16:36,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:16:36,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130843100] [2023-08-31 20:16:36,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:16:36,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:16:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:16:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:16:36,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:16:36,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130843100] [2023-08-31 20:16:36,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130843100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:16:36,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:16:36,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:16:36,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356413301] [2023-08-31 20:16:36,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:16:36,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:16:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:16:36,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:16:36,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:16:37,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 355 [2023-08-31 20:16:37,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 1097 transitions, 43330 flow. Second operand has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:37,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:16:37,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 355 [2023-08-31 20:16:37,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:16:43,436 INFO L130 PetriNetUnfolder]: 5647/14257 cut-off events. [2023-08-31 20:16:43,437 INFO L131 PetriNetUnfolder]: For 639988/640558 co-relation queries the response was YES. [2023-08-31 20:16:43,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112179 conditions, 14257 events. 5647/14257 cut-off events. For 639988/640558 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 140774 event pairs, 2121 based on Foata normal form. 106/13683 useless extension candidates. Maximal degree in co-relation 112022. Up to 10464 conditions per place. [2023-08-31 20:16:43,658 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 1014 selfloop transitions, 170 changer transitions 0/1372 dead transitions. [2023-08-31 20:16:43,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 1372 transitions, 55200 flow [2023-08-31 20:16:43,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:16:43,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:16:43,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 975 transitions. [2023-08-31 20:16:43,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45774647887323944 [2023-08-31 20:16:43,660 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 975 transitions. [2023-08-31 20:16:43,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 975 transitions. [2023-08-31 20:16:43,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:16:43,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 975 transitions. [2023-08-31 20:16:43,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:43,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:43,663 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:43,663 INFO L175 Difference]: Start difference. First operand has 406 places, 1097 transitions, 43330 flow. Second operand 6 states and 975 transitions. [2023-08-31 20:16:43,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 1372 transitions, 55200 flow [2023-08-31 20:16:49,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 1372 transitions, 54926 flow, removed 87 selfloop flow, removed 3 redundant places. [2023-08-31 20:16:49,670 INFO L231 Difference]: Finished difference. Result has 412 places, 1236 transitions, 46974 flow [2023-08-31 20:16:49,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=43130, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=999, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=46974, PETRI_PLACES=412, PETRI_TRANSITIONS=1236} [2023-08-31 20:16:49,672 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 335 predicate places. [2023-08-31 20:16:49,672 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 1236 transitions, 46974 flow [2023-08-31 20:16:49,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:49,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:16:49,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:16:49,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 20:16:49,672 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:16:49,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:16:49,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1086643166, now seen corresponding path program 1 times [2023-08-31 20:16:49,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:16:49,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265818272] [2023-08-31 20:16:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:16:49,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:16:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:16:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:16:49,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:16:49,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265818272] [2023-08-31 20:16:49,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265818272] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:16:49,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:16:49,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:16:49,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877566597] [2023-08-31 20:16:49,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:16:49,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:16:49,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:16:49,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:16:49,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:16:50,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 355 [2023-08-31 20:16:50,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 1236 transitions, 46974 flow. Second operand has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:50,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:16:50,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 355 [2023-08-31 20:16:50,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:16:59,440 INFO L130 PetriNetUnfolder]: 7995/18963 cut-off events. [2023-08-31 20:16:59,440 INFO L131 PetriNetUnfolder]: For 945441/946370 co-relation queries the response was YES. [2023-08-31 20:16:59,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159957 conditions, 18963 events. 7995/18963 cut-off events. For 945441/946370 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 190112 event pairs, 812 based on Foata normal form. 103/18562 useless extension candidates. Maximal degree in co-relation 159796. Up to 10805 conditions per place. [2023-08-31 20:16:59,827 INFO L137 encePairwiseOnDemand]: 333/355 looper letters, 1124 selfloop transitions, 746 changer transitions 4/2189 dead transitions. [2023-08-31 20:16:59,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 2189 transitions, 91780 flow [2023-08-31 20:16:59,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:16:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:16:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1056 transitions. [2023-08-31 20:16:59,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49577464788732395 [2023-08-31 20:16:59,829 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1056 transitions. [2023-08-31 20:16:59,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1056 transitions. [2023-08-31 20:16:59,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:16:59,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1056 transitions. [2023-08-31 20:16:59,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:59,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:59,832 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:16:59,832 INFO L175 Difference]: Start difference. First operand has 412 places, 1236 transitions, 46974 flow. Second operand 6 states and 1056 transitions. [2023-08-31 20:16:59,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 2189 transitions, 91780 flow [2023-08-31 20:17:09,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 2189 transitions, 91436 flow, removed 172 selfloop flow, removed 0 redundant places. [2023-08-31 20:17:09,940 INFO L231 Difference]: Finished difference. Result has 422 places, 1804 transitions, 75697 flow [2023-08-31 20:17:09,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=46630, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=75697, PETRI_PLACES=422, PETRI_TRANSITIONS=1804} [2023-08-31 20:17:09,942 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 345 predicate places. [2023-08-31 20:17:09,942 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 1804 transitions, 75697 flow [2023-08-31 20:17:09,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:09,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:17:09,942 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] [2023-08-31 20:17:09,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 20:17:09,942 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:17:09,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:17:09,943 INFO L85 PathProgramCache]: Analyzing trace with hash 616594389, now seen corresponding path program 1 times [2023-08-31 20:17:09,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:17:09,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542524521] [2023-08-31 20:17:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:17:09,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:17:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:17:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:17:10,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:17:10,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542524521] [2023-08-31 20:17:10,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542524521] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:17:10,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:17:10,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:17:10,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664848613] [2023-08-31 20:17:10,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:17:10,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:17:10,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:17:10,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:17:10,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:17:10,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 355 [2023-08-31 20:17:10,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 1804 transitions, 75697 flow. Second operand has 10 states, 10 states have (on average 142.5) internal successors, (1425), 10 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:10,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:17:10,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 355 [2023-08-31 20:17:10,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:17:23,625 INFO L130 PetriNetUnfolder]: 8186/19746 cut-off events. [2023-08-31 20:17:23,625 INFO L131 PetriNetUnfolder]: For 965988/966775 co-relation queries the response was YES. [2023-08-31 20:17:23,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175479 conditions, 19746 events. 8186/19746 cut-off events. For 965988/966775 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 199508 event pairs, 1887 based on Foata normal form. 286/19576 useless extension candidates. Maximal degree in co-relation 175313. Up to 11809 conditions per place. [2023-08-31 20:17:24,055 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 1270 selfloop transitions, 488 changer transitions 2/2084 dead transitions. [2023-08-31 20:17:24,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 2084 transitions, 87332 flow [2023-08-31 20:17:24,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 20:17:24,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 20:17:24,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2306 transitions. [2023-08-31 20:17:24,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4330516431924883 [2023-08-31 20:17:24,057 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2306 transitions. [2023-08-31 20:17:24,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2306 transitions. [2023-08-31 20:17:24,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:17:24,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2306 transitions. [2023-08-31 20:17:24,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 153.73333333333332) internal successors, (2306), 15 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:24,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 355.0) internal successors, (5680), 16 states have internal predecessors, (5680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:24,062 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 355.0) internal successors, (5680), 16 states have internal predecessors, (5680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:24,062 INFO L175 Difference]: Start difference. First operand has 422 places, 1804 transitions, 75697 flow. Second operand 15 states and 2306 transitions. [2023-08-31 20:17:24,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 2084 transitions, 87332 flow [2023-08-31 20:17:36,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 2084 transitions, 86516 flow, removed 408 selfloop flow, removed 0 redundant places. [2023-08-31 20:17:36,430 INFO L231 Difference]: Finished difference. Result has 440 places, 1894 transitions, 79858 flow [2023-08-31 20:17:36,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=74905, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1804, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=404, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=79858, PETRI_PLACES=440, PETRI_TRANSITIONS=1894} [2023-08-31 20:17:36,431 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 363 predicate places. [2023-08-31 20:17:36,431 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 1894 transitions, 79858 flow [2023-08-31 20:17:36,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.5) internal successors, (1425), 10 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:36,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:17:36,432 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] [2023-08-31 20:17:36,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-31 20:17:36,432 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:17:36,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:17:36,432 INFO L85 PathProgramCache]: Analyzing trace with hash 739678113, now seen corresponding path program 1 times [2023-08-31 20:17:36,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:17:36,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053650109] [2023-08-31 20:17:36,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:17:36,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:17:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:17:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:17:37,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:17:37,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053650109] [2023-08-31 20:17:37,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053650109] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:17:37,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:17:37,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:17:37,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059360415] [2023-08-31 20:17:37,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:17:37,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:17:37,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:17:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:17:37,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:17:38,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-31 20:17:38,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1894 transitions, 79858 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:38,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:17:38,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-31 20:17:38,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:17:51,734 INFO L130 PetriNetUnfolder]: 8287/19806 cut-off events. [2023-08-31 20:17:51,734 INFO L131 PetriNetUnfolder]: For 1020879/1021669 co-relation queries the response was YES. [2023-08-31 20:17:52,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178279 conditions, 19806 events. 8287/19806 cut-off events. For 1020879/1021669 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 199040 event pairs, 1764 based on Foata normal form. 162/19504 useless extension candidates. Maximal degree in co-relation 178108. Up to 10178 conditions per place. [2023-08-31 20:17:52,140 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1167 selfloop transitions, 542 changer transitions 0/2121 dead transitions. [2023-08-31 20:17:52,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 2121 transitions, 89194 flow [2023-08-31 20:17:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-31 20:17:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-31 20:17:52,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2602 transitions. [2023-08-31 20:17:52,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38576723498888066 [2023-08-31 20:17:52,143 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2602 transitions. [2023-08-31 20:17:52,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2602 transitions. [2023-08-31 20:17:52,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:17:52,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2602 transitions. [2023-08-31 20:17:52,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.94736842105263) internal successors, (2602), 19 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:52,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 355.0) internal successors, (7100), 20 states have internal predecessors, (7100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:52,150 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 355.0) internal successors, (7100), 20 states have internal predecessors, (7100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:52,150 INFO L175 Difference]: Start difference. First operand has 440 places, 1894 transitions, 79858 flow. Second operand 19 states and 2602 transitions. [2023-08-31 20:17:52,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 2121 transitions, 89194 flow [2023-08-31 20:18:05,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 2121 transitions, 89117 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-31 20:18:05,705 INFO L231 Difference]: Finished difference. Result has 461 places, 1924 transitions, 82360 flow [2023-08-31 20:18:05,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=79781, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1894, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=82360, PETRI_PLACES=461, PETRI_TRANSITIONS=1924} [2023-08-31 20:18:05,708 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 384 predicate places. [2023-08-31 20:18:05,708 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 1924 transitions, 82360 flow [2023-08-31 20:18:05,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:05,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:05,708 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] [2023-08-31 20:18:05,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-31 20:18:05,709 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:18:05,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:05,709 INFO L85 PathProgramCache]: Analyzing trace with hash -240303775, now seen corresponding path program 2 times [2023-08-31 20:18:05,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:05,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13277556] [2023-08-31 20:18:05,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:05,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:06,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:06,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13277556] [2023-08-31 20:18:06,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13277556] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:06,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:06,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:18:06,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91940219] [2023-08-31 20:18:06,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:06,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:18:06,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:06,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:18:06,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:18:07,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-31 20:18:07,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 1924 transitions, 82360 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:07,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:07,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-31 20:18:07,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:31,153 INFO L130 PetriNetUnfolder]: 13512/31841 cut-off events. [2023-08-31 20:18:31,154 INFO L131 PetriNetUnfolder]: For 1633632/1634399 co-relation queries the response was YES. [2023-08-31 20:18:31,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294647 conditions, 31841 events. 13512/31841 cut-off events. For 1633632/1634399 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 342337 event pairs, 1994 based on Foata normal form. 144/31367 useless extension candidates. Maximal degree in co-relation 294469. Up to 11852 conditions per place. [2023-08-31 20:18:32,033 INFO L137 encePairwiseOnDemand]: 339/355 looper letters, 2284 selfloop transitions, 473 changer transitions 0/3169 dead transitions. [2023-08-31 20:18:32,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 3169 transitions, 136933 flow [2023-08-31 20:18:32,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-31 20:18:32,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-31 20:18:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2208 transitions. [2023-08-31 20:18:32,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38873239436619716 [2023-08-31 20:18:32,036 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2208 transitions. [2023-08-31 20:18:32,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2208 transitions. [2023-08-31 20:18:32,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:32,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2208 transitions. [2023-08-31 20:18:32,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 138.0) internal successors, (2208), 16 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:32,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 355.0) internal successors, (6035), 17 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:32,045 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 355.0) internal successors, (6035), 17 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:32,045 INFO L175 Difference]: Start difference. First operand has 461 places, 1924 transitions, 82360 flow. Second operand 16 states and 2208 transitions. [2023-08-31 20:18:32,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 3169 transitions, 136933 flow [2023-08-31 20:18:57,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 3169 transitions, 135800 flow, removed 5 selfloop flow, removed 10 redundant places. [2023-08-31 20:18:57,994 INFO L231 Difference]: Finished difference. Result has 476 places, 2313 transitions, 103360 flow [2023-08-31 20:18:57,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=81736, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1924, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=103360, PETRI_PLACES=476, PETRI_TRANSITIONS=2313} [2023-08-31 20:18:57,996 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 399 predicate places. [2023-08-31 20:18:57,996 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 2313 transitions, 103360 flow [2023-08-31 20:18:57,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:57,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:57,996 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] [2023-08-31 20:18:57,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-31 20:18:57,997 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:18:57,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:57,997 INFO L85 PathProgramCache]: Analyzing trace with hash -729693943, now seen corresponding path program 3 times [2023-08-31 20:18:57,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:57,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688435359] [2023-08-31 20:18:57,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:57,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:58,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:58,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688435359] [2023-08-31 20:18:58,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688435359] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:58,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:58,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:18:58,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54005648] [2023-08-31 20:18:58,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:58,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:18:58,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:58,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:18:58,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:18:59,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-31 20:18:59,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 2313 transitions, 103360 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:59,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:59,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-31 20:18:59,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:26,488 INFO L130 PetriNetUnfolder]: 13654/32045 cut-off events. [2023-08-31 20:19:26,488 INFO L131 PetriNetUnfolder]: For 1699258/1700512 co-relation queries the response was YES. [2023-08-31 20:19:27,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304130 conditions, 32045 events. 13654/32045 cut-off events. For 1699258/1700512 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 342353 event pairs, 2815 based on Foata normal form. 330/31704 useless extension candidates. Maximal degree in co-relation 303941. Up to 16868 conditions per place. [2023-08-31 20:19:27,450 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1286 selfloop transitions, 810 changer transitions 0/2508 dead transitions. [2023-08-31 20:19:27,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 2508 transitions, 112658 flow [2023-08-31 20:19:27,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 20:19:27,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 20:19:27,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2023-08-31 20:19:27,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3857589984350548 [2023-08-31 20:19:27,453 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2465 transitions. [2023-08-31 20:19:27,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2465 transitions. [2023-08-31 20:19:27,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:27,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2465 transitions. [2023-08-31 20:19:27,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.94444444444446) internal successors, (2465), 18 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:27,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:27,460 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:27,460 INFO L175 Difference]: Start difference. First operand has 476 places, 2313 transitions, 103360 flow. Second operand 18 states and 2465 transitions. [2023-08-31 20:19:27,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 2508 transitions, 112658 flow [2023-08-31 20:19:54,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 2508 transitions, 112600 flow, removed 29 selfloop flow, removed 0 redundant places. [2023-08-31 20:19:54,117 INFO L231 Difference]: Finished difference. Result has 500 places, 2345 transitions, 106227 flow [2023-08-31 20:19:54,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=103310, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=779, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=106227, PETRI_PLACES=500, PETRI_TRANSITIONS=2345} [2023-08-31 20:19:54,119 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 423 predicate places. [2023-08-31 20:19:54,120 INFO L495 AbstractCegarLoop]: Abstraction has has 500 places, 2345 transitions, 106227 flow [2023-08-31 20:19:54,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:54,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:54,120 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] [2023-08-31 20:19:54,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-31 20:19:54,120 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:19:54,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:54,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1878478625, now seen corresponding path program 4 times [2023-08-31 20:19:54,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:54,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662341936] [2023-08-31 20:19:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:54,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:54,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:54,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:54,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662341936] [2023-08-31 20:19:54,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662341936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:54,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:54,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:19:54,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956454062] [2023-08-31 20:19:54,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:54,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:19:54,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:54,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:19:54,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:19:55,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-31 20:19:55,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 2345 transitions, 106227 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:55,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:55,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-31 20:19:55,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:20:24,004 INFO L130 PetriNetUnfolder]: 13844/32577 cut-off events. [2023-08-31 20:20:24,005 INFO L131 PetriNetUnfolder]: For 1808906/1809921 co-relation queries the response was YES. [2023-08-31 20:20:24,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317182 conditions, 32577 events. 13844/32577 cut-off events. For 1808906/1809921 co-relation queries the response was YES. Maximal size of possible extension queue 1049. Compared 348834 event pairs, 2946 based on Foata normal form. 256/32120 useless extension candidates. Maximal degree in co-relation 316985. Up to 19072 conditions per place. [2023-08-31 20:20:25,037 INFO L137 encePairwiseOnDemand]: 340/355 looper letters, 1666 selfloop transitions, 569 changer transitions 0/2647 dead transitions. [2023-08-31 20:20:25,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 2647 transitions, 119795 flow [2023-08-31 20:20:25,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-31 20:20:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-31 20:20:25,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2343 transitions. [2023-08-31 20:20:25,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38823529411764707 [2023-08-31 20:20:25,040 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2343 transitions. [2023-08-31 20:20:25,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2343 transitions. [2023-08-31 20:20:25,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:20:25,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2343 transitions. [2023-08-31 20:20:25,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 137.8235294117647) internal successors, (2343), 17 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:25,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:25,045 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:25,045 INFO L175 Difference]: Start difference. First operand has 500 places, 2345 transitions, 106227 flow. Second operand 17 states and 2343 transitions. [2023-08-31 20:20:25,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 2647 transitions, 119795 flow [2023-08-31 20:20:53,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 2647 transitions, 119497 flow, removed 50 selfloop flow, removed 6 redundant places. [2023-08-31 20:20:53,284 INFO L231 Difference]: Finished difference. Result has 519 places, 2401 transitions, 109893 flow [2023-08-31 20:20:53,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=105930, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=518, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1791, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=109893, PETRI_PLACES=519, PETRI_TRANSITIONS=2401} [2023-08-31 20:20:53,286 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 442 predicate places. [2023-08-31 20:20:53,286 INFO L495 AbstractCegarLoop]: Abstraction has has 519 places, 2401 transitions, 109893 flow [2023-08-31 20:20:53,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:53,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:20:53,286 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] [2023-08-31 20:20:53,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-31 20:20:53,286 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:20:53,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:20:53,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1135436671, now seen corresponding path program 5 times [2023-08-31 20:20:53,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:20:53,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989406438] [2023-08-31 20:20:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:20:53,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:20:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:20:54,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:20:54,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:20:54,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989406438] [2023-08-31 20:20:54,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989406438] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:20:54,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:20:54,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:20:54,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987892377] [2023-08-31 20:20:54,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:20:54,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:20:54,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:20:54,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:20:54,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:20:54,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-31 20:20:54,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 2401 transitions, 109893 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:54,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:20:54,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-31 20:20:54,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:21:24,697 INFO L130 PetriNetUnfolder]: 13867/32533 cut-off events. [2023-08-31 20:21:24,697 INFO L131 PetriNetUnfolder]: For 1887185/1888583 co-relation queries the response was YES. [2023-08-31 20:21:25,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324499 conditions, 32533 events. 13867/32533 cut-off events. For 1887185/1888583 co-relation queries the response was YES. Maximal size of possible extension queue 1052. Compared 347697 event pairs, 2883 based on Foata normal form. 365/32222 useless extension candidates. Maximal degree in co-relation 324293. Up to 16904 conditions per place. [2023-08-31 20:21:25,672 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1223 selfloop transitions, 995 changer transitions 0/2630 dead transitions. [2023-08-31 20:21:25,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 2630 transitions, 120525 flow [2023-08-31 20:21:25,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-31 20:21:25,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-31 20:21:25,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3122 transitions. [2023-08-31 20:21:25,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.382363747703613 [2023-08-31 20:21:25,676 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3122 transitions. [2023-08-31 20:21:25,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3122 transitions. [2023-08-31 20:21:25,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:21:25,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3122 transitions. [2023-08-31 20:21:25,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 135.7391304347826) internal successors, (3122), 23 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:25,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 355.0) internal successors, (8520), 24 states have internal predecessors, (8520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:25,685 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 355.0) internal successors, (8520), 24 states have internal predecessors, (8520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:25,685 INFO L175 Difference]: Start difference. First operand has 519 places, 2401 transitions, 109893 flow. Second operand 23 states and 3122 transitions. [2023-08-31 20:21:25,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 2630 transitions, 120525 flow [2023-08-31 20:21:54,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 2630 transitions, 120210 flow, removed 125 selfloop flow, removed 3 redundant places. [2023-08-31 20:21:54,169 INFO L231 Difference]: Finished difference. Result has 546 places, 2428 transitions, 113213 flow [2023-08-31 20:21:54,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=109594, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=969, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=113213, PETRI_PLACES=546, PETRI_TRANSITIONS=2428} [2023-08-31 20:21:54,171 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 469 predicate places. [2023-08-31 20:21:54,171 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 2428 transitions, 113213 flow [2023-08-31 20:21:54,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:54,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:21:54,171 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] [2023-08-31 20:21:54,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-31 20:21:54,171 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:21:54,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:21:54,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2030116687, now seen corresponding path program 6 times [2023-08-31 20:21:54,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:21:54,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452929864] [2023-08-31 20:21:54,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:21:54,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:21:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:21:54,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:21:54,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:21:54,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452929864] [2023-08-31 20:21:54,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452929864] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:21:54,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:21:54,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:21:54,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519947312] [2023-08-31 20:21:54,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:21:54,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:21:54,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:21:54,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:21:54,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:21:55,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-31 20:21:55,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 2428 transitions, 113213 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:55,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:21:55,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-31 20:21:55,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:22:25,910 INFO L130 PetriNetUnfolder]: 13877/32565 cut-off events. [2023-08-31 20:22:25,910 INFO L131 PetriNetUnfolder]: For 1964707/1966110 co-relation queries the response was YES. [2023-08-31 20:22:27,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332523 conditions, 32565 events. 13877/32565 cut-off events. For 1964707/1966110 co-relation queries the response was YES. Maximal size of possible extension queue 1053. Compared 348149 event pairs, 2868 based on Foata normal form. 376/32263 useless extension candidates. Maximal degree in co-relation 332308. Up to 16949 conditions per place. [2023-08-31 20:22:27,395 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1386 selfloop transitions, 798 changer transitions 0/2596 dead transitions. [2023-08-31 20:22:27,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 2596 transitions, 122292 flow [2023-08-31 20:22:27,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-31 20:22:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-31 20:22:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2332 transitions. [2023-08-31 20:22:27,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3864125932062966 [2023-08-31 20:22:27,399 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2332 transitions. [2023-08-31 20:22:27,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2332 transitions. [2023-08-31 20:22:27,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:22:27,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2332 transitions. [2023-08-31 20:22:27,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 137.1764705882353) internal successors, (2332), 17 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:27,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:27,406 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:27,406 INFO L175 Difference]: Start difference. First operand has 546 places, 2428 transitions, 113213 flow. Second operand 17 states and 2332 transitions. [2023-08-31 20:22:27,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 2596 transitions, 122292 flow [2023-08-31 20:22:57,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 2596 transitions, 121397 flow, removed 64 selfloop flow, removed 10 redundant places. [2023-08-31 20:22:57,097 INFO L231 Difference]: Finished difference. Result has 559 places, 2464 transitions, 115953 flow [2023-08-31 20:22:57,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=112332, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=764, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=115953, PETRI_PLACES=559, PETRI_TRANSITIONS=2464} [2023-08-31 20:22:57,099 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 482 predicate places. [2023-08-31 20:22:57,099 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 2464 transitions, 115953 flow [2023-08-31 20:22:57,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:57,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:22:57,100 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] [2023-08-31 20:22:57,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-31 20:22:57,100 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:22:57,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:22:57,101 INFO L85 PathProgramCache]: Analyzing trace with hash -416322961, now seen corresponding path program 7 times [2023-08-31 20:22:57,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:22:57,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364034380] [2023-08-31 20:22:57,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:22:57,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:22:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:22:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:22:57,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:22:57,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364034380] [2023-08-31 20:22:57,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364034380] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:22:57,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:22:57,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:22:57,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454185146] [2023-08-31 20:22:57,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:22:57,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:22:57,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:22:57,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:22:57,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:22:58,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-31 20:22:58,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 2464 transitions, 115953 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:58,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:22:58,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-31 20:22:58,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:23:29,385 INFO L130 PetriNetUnfolder]: 13901/32599 cut-off events. [2023-08-31 20:23:29,385 INFO L131 PetriNetUnfolder]: For 2052998/2054241 co-relation queries the response was YES. [2023-08-31 20:23:30,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337835 conditions, 32599 events. 13901/32599 cut-off events. For 2052998/2054241 co-relation queries the response was YES. Maximal size of possible extension queue 1060. Compared 348302 event pairs, 2890 based on Foata normal form. 329/32248 useless extension candidates. Maximal degree in co-relation 337613. Up to 16963 conditions per place. [2023-08-31 20:23:30,744 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1351 selfloop transitions, 877 changer transitions 0/2640 dead transitions. [2023-08-31 20:23:30,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 2640 transitions, 124949 flow [2023-08-31 20:23:30,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-31 20:23:30,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-31 20:23:30,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2853 transitions. [2023-08-31 20:23:30,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38269617706237424 [2023-08-31 20:23:30,747 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2853 transitions. [2023-08-31 20:23:30,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2853 transitions. [2023-08-31 20:23:30,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:23:30,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2853 transitions. [2023-08-31 20:23:30,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 135.85714285714286) internal successors, (2853), 21 states have internal predecessors, (2853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:23:30,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 355.0) internal successors, (7810), 22 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:23:30,755 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 355.0) internal successors, (7810), 22 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:23:30,756 INFO L175 Difference]: Start difference. First operand has 559 places, 2464 transitions, 115953 flow. Second operand 21 states and 2853 transitions. [2023-08-31 20:23:30,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 2640 transitions, 124949 flow [2023-08-31 20:24:01,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 2640 transitions, 124473 flow, removed 141 selfloop flow, removed 5 redundant places. [2023-08-31 20:24:01,441 INFO L231 Difference]: Finished difference. Result has 581 places, 2484 transitions, 118390 flow [2023-08-31 20:24:01,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=115503, PETRI_DIFFERENCE_MINUEND_PLACES=554, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=857, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=118390, PETRI_PLACES=581, PETRI_TRANSITIONS=2484} [2023-08-31 20:24:01,443 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 504 predicate places. [2023-08-31 20:24:01,444 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 2484 transitions, 118390 flow [2023-08-31 20:24:01,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:24:01,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:24:01,444 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] [2023-08-31 20:24:01,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-31 20:24:01,445 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:24:01,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:24:01,445 INFO L85 PathProgramCache]: Analyzing trace with hash 647209279, now seen corresponding path program 8 times [2023-08-31 20:24:01,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:24:01,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348110760] [2023-08-31 20:24:01,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:24:01,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:24:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:24:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:24:01,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:24:01,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348110760] [2023-08-31 20:24:01,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348110760] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:24:01,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:24:01,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:24:01,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005651817] [2023-08-31 20:24:01,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:24:01,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:24:01,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:24:01,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:24:01,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:24:03,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-31 20:24:03,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 2484 transitions, 118390 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:24:03,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:24:03,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-31 20:24:03,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:24:34,746 INFO L130 PetriNetUnfolder]: 13939/32684 cut-off events. [2023-08-31 20:24:34,746 INFO L131 PetriNetUnfolder]: For 2137871/2139294 co-relation queries the response was YES. [2023-08-31 20:24:35,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343209 conditions, 32684 events. 13939/32684 cut-off events. For 2137871/2139294 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 349446 event pairs, 2929 based on Foata normal form. 396/32403 useless extension candidates. Maximal degree in co-relation 342980. Up to 16951 conditions per place. [2023-08-31 20:24:35,988 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1363 selfloop transitions, 886 changer transitions 0/2661 dead transitions. [2023-08-31 20:24:35,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 2661 transitions, 127111 flow [2023-08-31 20:24:35,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-31 20:24:35,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-31 20:24:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2852 transitions. [2023-08-31 20:24:35,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38256203890006707 [2023-08-31 20:24:35,991 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2852 transitions. [2023-08-31 20:24:35,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2852 transitions. [2023-08-31 20:24:35,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:24:35,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2852 transitions. [2023-08-31 20:24:35,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 135.8095238095238) internal successors, (2852), 21 states have internal predecessors, (2852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:24:35,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 355.0) internal successors, (7810), 22 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:24:35,999 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 355.0) internal successors, (7810), 22 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:24:36,000 INFO L175 Difference]: Start difference. First operand has 581 places, 2484 transitions, 118390 flow. Second operand 21 states and 2852 transitions. [2023-08-31 20:24:36,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 2661 transitions, 127111 flow [2023-08-31 20:25:09,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 2661 transitions, 126130 flow, removed 53 selfloop flow, removed 10 redundant places. [2023-08-31 20:25:09,560 INFO L231 Difference]: Finished difference. Result has 600 places, 2510 transitions, 120460 flow [2023-08-31 20:25:09,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=117413, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=860, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=120460, PETRI_PLACES=600, PETRI_TRANSITIONS=2510} [2023-08-31 20:25:09,562 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 523 predicate places. [2023-08-31 20:25:09,562 INFO L495 AbstractCegarLoop]: Abstraction has has 600 places, 2510 transitions, 120460 flow [2023-08-31 20:25:09,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:25:09,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:25:09,563 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] [2023-08-31 20:25:09,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-31 20:25:09,563 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-31 20:25:09,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:25:09,563 INFO L85 PathProgramCache]: Analyzing trace with hash 231007295, now seen corresponding path program 9 times [2023-08-31 20:25:09,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:25:09,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892232872] [2023-08-31 20:25:09,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:25:09,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:25:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:25:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:25:10,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:25:10,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892232872] [2023-08-31 20:25:10,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892232872] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:25:10,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:25:10,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:25:10,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639161170] [2023-08-31 20:25:10,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:25:10,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:25:10,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:25:10,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:25:10,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:25:11,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-31 20:25:11,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 2510 transitions, 120460 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:25:11,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:25:11,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-31 20:25:11,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:25:43,827 INFO L130 PetriNetUnfolder]: 13961/32736 cut-off events. [2023-08-31 20:25:43,827 INFO L131 PetriNetUnfolder]: For 2229861/2231275 co-relation queries the response was YES. [2023-08-31 20:25:45,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349141 conditions, 32736 events. 13961/32736 cut-off events. For 2229861/2231275 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 350070 event pairs, 2891 based on Foata normal form. 379/32436 useless extension candidates. Maximal degree in co-relation 348903. Up to 17058 conditions per place. [2023-08-31 20:25:45,205 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1421 selfloop transitions, 833 changer transitions 0/2666 dead transitions. [2023-08-31 20:25:45,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 2666 transitions, 128930 flow [2023-08-31 20:25:45,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-31 20:25:45,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-31 20:25:45,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2720 transitions. [2023-08-31 20:25:45,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38309859154929576 [2023-08-31 20:25:45,209 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2720 transitions. [2023-08-31 20:25:45,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2720 transitions. [2023-08-31 20:25:45,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:25:45,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2720 transitions. [2023-08-31 20:25:45,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:25:45,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 355.0) internal successors, (7455), 21 states have internal predecessors, (7455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:25:45,217 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 355.0) internal successors, (7455), 21 states have internal predecessors, (7455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:25:45,217 INFO L175 Difference]: Start difference. First operand has 600 places, 2510 transitions, 120460 flow. Second operand 20 states and 2720 transitions. [2023-08-31 20:25:45,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 2666 transitions, 128930 flow Killed by 15